Current weather · Sep 29, 2:30 AM CDT

46.8230, -95.8610

64°

Chance of moderate rain showers and slight chance of thunderstormsFeels like 64° · Humidity 100%NWS forecast for this hour; no recent station reportForecast by NWS Grand Forks, ND · grid 130,54
High
68°
Low
54°
Rain today
95%
Sunrise
7:20 AM
Sunset
7:07 PM

Hour by hour

NWS forecast grid

Scroll sideways for more hours. Pick an hour for every number.

Every hour as a table48 hours
TimeWeatherTemperatureFeels likeDew pointHumidityChanceAmountSnowDirWindGustSky coverThunderPressureVisibilityCeiling
Tue 2 AMChance of moderate rain showers and slight chance of thunderstorms64°64°64°100%52%0.06 inS13 mph22 mph94%16%——
Tue 3 AMModerate rain showers likely and slight chance of thunderstorms64°64°63°97%67%0.06 inS13 mph22 mph94%16%——
Tue 4 AMModerate rain showers and slight chance of thunderstorms63°63°62°97%95%0.06 inS13 mph22 mph87%22%——
Tue 5 AMModerate rain showers and slight chance of thunderstorms61°61°61°100%88%0.06 inS13 mph22 mph91%22%——
Tue 6 AMModerate rain showers and slight chance of thunderstorms61°61°61°100%75%0.06 inS13 mph21 mph93%22%——
Tue 7 AMModerate rain showers and slight chance of thunderstorms61°61°61°100%92%0.05 inS13 mph21 mph92%21%——
Tue 8 AMModerate rain showers and slight chance of thunderstorms and patchy fog61°61°61°100%91%0.05 inS12 mph21 mph96%21%——
Tue 9 AMModerate rain showers and slight chance of thunderstorms and patchy fog61°61°61°100%83%0.05 inS12 mph21 mph91%21%——
Tue 10 AMModerate rain showers likely and slight chance of thunderstorms62°62°62°100%68%0.05 inS10 mph20 mph89%17%——
Tue 11 AMModerate rain showers likely and slight chance of thunderstorms63°63°63°100%65%0.05 inS12 mph20 mph87%17%——
Tue 12 PMChance of light rain showers and slight chance of thunderstorms64°64°64°100%45%0.05 inSSW12 mph20 mph83%17%——
Tue 1 PMChance of light rain showers and slight chance of thunderstorms64°64°64°100%36%0.00 inSW12 mph20 mph82%16%——
Tue 2 PMSlight chance of thunderstorms and slight chance of light rain showers65°65°65°100%18%0.00 inSW10 mph18 mph61%16%——
Tue 3 PM66°66°65°97%12%0.00 inWSW10 mph17 mph59%12%——
Tue 4 PMSlight chance of light rain showers66°66°65°97%15%0.00 inWSW9 mph16 mph60%8%——
Tue 5 PM66°66°64°93%7%0.00 inWSW8 mph15 mph54%7%——
Tue 6 PM65°65°64°97%1%0.00 inWSW6 mph13 mph59%1%——
Tue 7 PM64°64°63°97%0%WSW5 mph9 mph44%——
Tue 8 PM62°62°62°100%0%SW3 mph8 mph43%——
Tue 9 PM61°61°61°100%0%SW3 mph8 mph39%——
Tue 10 PM60°60°60°100%0%SW3 mph8 mph41%——
Tue 11 PM60°60°60°100%0%SSW3 mph8 mph45%——
Wed 12 AM59°59°59°100%0%SSW5 mph9 mph51%——
Wed 1 AM59°59°59°100%0%SSW5 mph9 mph51%——
Wed 2 AM58°58°58°100%0%SSW5 mph10 mph54%——
Wed 3 AM58°58°58°100%0%SSW5 mph10 mph64%——
Wed 4 AM57°57°57°100%0%SSW5 mph10 mph42%——
Wed 5 AM56°56°56°100%0%SSW5 mph10 mph43%——
Wed 6 AM56°56°56°100%0%SSW5 mph10 mph51%——
Wed 7 AM55°55°55°100%0%SSW5 mph9 mph53%——
Wed 8 AM56°56°56°100%0%SSW5 mph10 mph56%——
Wed 9 AM59°59°58°96%0%SSW6 mph12 mph51%——
Wed 10 AM61°61°58°90%0%SW6 mph12 mph43%——
Wed 11 AM64°64°58°81%0%SW7 mph13 mph25%——
Wed 12 PM66°66°58°75%0%SW7 mph14 mph19%——
Wed 1 PM69°69°58°68%0%SW8 mph15 mph15%——
Wed 2 PM70°70°57°63%0%SW8 mph15 mph2%——
Wed 3 PM70°70°57°63%0%WSW9 mph16 mph2%——
Wed 4 PM71°71°57°61%0%WSW9 mph17 mph18%——
Wed 5 PM70°70°57°63%0%WSW9 mph16 mph10%——
Wed 6 PM68°68°57°68%0%W7 mph14 mph15%——
Wed 7 PM66°66°56°70%0%W6 mph12 mph29%——
Wed 8 PM62°62°55°78%0%WNW7 mph13 mph25%——
Wed 9 PM60°60°54°81%0%NW7 mph14 mph38%——
Wed 10 PM59°59°53°80%0%NW7 mph15 mph50%——
Wed 11 PM57°57°51°80%0%NW7 mph15 mph51%——
Thu 12 AM56°56°48°74%0%NNW7 mph15 mph51%——
Thu 1 AM54°54°46°74%0%NNW7 mph15 mph52%——

The next 16 days

NWS grid published Sep 29, 1:31 AM CDT to day 8, the National Blend of Models to day 10, the mean of GFS, ECMWF, ECMWF AI to day 16
  1. TodaySep 2968°54°Showers And Thunderstorms95%0.68 inwind 13 mph · gusts 22 mph
  2. WedSep 3072°45°Mostly Sunny0%wind 9 mph · gusts 17 mph
  3. ThuOct 160°41°Sunny0%wind 13 mph · gusts 21 mph
  4. FriOct 259°44°Mostly Sunny9%wind 7 mph · gusts 13 mph
  5. SatOct 360°42°Chance Rain Showers37%0.26 inwind 14 mph · gusts 23 mph
  6. SunOct 457°39°Sunny7%wind 10 mph · gusts 18 mph
  7. MonOct 559°45°Mostly Sunny2%wind 13 mph · gusts 22 mph
  8. TueOct 664°47°10%wind 15 mph · gusts 25 mph
  9. WedOct 762°43°National Blend7%wind 13 mph · gusts 22 mph
  10. ThuOct 861°44°National Blend4%wind 12 mph · gusts 22 mph
  11. FriOct 9~61°43°Model mean
  12. SatOct 10~63°50°Model mean
  13. SunOct 11~51°43°Model mean
  14. MonOct 12~55°37°Model mean
  15. TueOct 13~62°47°Model mean0.03 in
  16. WedOct 14~53°44°Model mean

Right now

NWS grid for this hour · UV from the EPA · air quality from AirNow
  • Feels like64°
  • WindS 13 mphgusts 22 mph
  • Radar over this pointno reading
  • Humidity100%
  • Dew point64°
  • Pressure—
  • UV index—
  • Air quality—
  • Visibility—
  • Sunrise and sunsetSunrise · Sunset · not yet up
  • Moonrise8:09 PMMoonset 11:10 AM
  • Moon phaseWaning gibbous90% lit

The National Blend of Models

NOAA NBM v5.0 · run of Sep 28, 7:00 PM CDT

NOAA’s weighted blend of every model it runs, to eleven days, with the chances the grid above does not carry. Where the local office’s grid reaches, its figure sits beneath the blend’s; where it does not, the blend stands alone.

  1. TodaySep 2968°54°NWS grid 68° / 54°rain 100%thunder 23%0.73 inwind 15 mph · gusts 24 mph
  2. WedSep 3072°45°NWS grid 72° / 45°rain 1%wind 9 mph · gusts 17 mph
  3. ThuOct 160°40°NWS grid 60° / 41°rain 2%wind 13 mph · gusts 21 mph
  4. FriOct 260°44°NWS grid 59° / 44°rain 13%wind 7 mph · gusts 15 mph
  5. SatOct 360°40°NWS grid 60° / 42°rain 37%0.18 inwind 15 mph · gusts 24 mph
  6. SunOct 456°38°NWS grid 57° / 39°rain 3%wind 12 mph · gusts 20 mph
  7. MonOct 558°43°NWS grid 59° / 45°rain 2%wind 13 mph · gusts 22 mph
  8. TueOct 662°46°NWS grid 64° / 47°rain 7%wind 15 mph · gusts 25 mph
  9. WedOct 762°43°Beyond the NWS gridrain 7%wind 13 mph · gusts 22 mph
  10. ThuOct 861°44°Beyond the NWS gridrain 4%wind 12 mph · gusts 22 mph
  11. FriOct 961°—Beyond the NWS gridrain 5%wind 13 mph · gusts 21 mph
32°55°77°WedThuFriSatSunMonTue

BlendNWS gridChance of rain, hourly

The models, side by side

HRRR Sep 28, 7:00 PM CDT · GFS Sep 28, 7:00 PM CDT · GEFS Sep 28, 7:00 PM CDT · ECMWF Sep 28, 7:00 AM CDT · ECMWF AI Sep 28, 7:00 PM CDT

Each line is one model’s own forecast at its own grid cell: three kilometers for HRRR, a quarter of a degree for the global models, which can sit a few hundred meters above or below the town. Where they agree the forecast is settled; where they part is where it is not.

32°55°77°WedThuFriSatSunMonTue

DayNWS gridHRRRGFSGEFSECMWFECMWF AI
Today Sep 2968° 54°0.68 in70° 59°0.22 in66° 61°0.65 in70° 62°0.40 in67° 59°0.51 in~67° 62°0.63 in
Wed Sep 3072° 45°71° 53°71° 55°72° 55°72° 56°~71° 55°
Thu Oct 160° 41°—60° 49°61° 49°61° 48°~60° 47°
Fri Oct 259° 44°—60° 41°58° 42°0.01 in60° 46°~57° 38°
Sat Oct 360° 42°0.26 in—49° 44°0.58 in55° 48°0.17 in64° 50°0.07 in~54° 48°0.20 in
Sun Oct 457° 39°—55° 42°57° 42°~57° 51°~56° 43°
Mon Oct 559° 45°—57° 38°59° 40°0.02 in~60° 45°~55° 33°
Tue Oct 664° 47°—70° 54°0.09 in64° 50°~68° 55°~65° 49°0.03 in
Wed Oct 7——64° 51°0.07 in63° 51°0.04 in~67° 57°~64° 51°
Thu Oct 8——62° 44°60° 47°0.02 in~53° 45°~60° 43°
Fri Oct 9——~66° 47°—~57° 42°~60° 40°
Sat Oct 10——~62° 51°—~67° 51°~60° 47°
Sun Oct 11——~51° 40°—~60° 50°~44° 38°
Mon Oct 12——~59° 39°—~54° 42°~52° 31°
Tue Oct 13——~67° 50°—~54° 54°~56° 45°0.05 in
Wed Oct 14——~53° 44°———

A ~ marks a high or low read from six-hourly steps, which miss the true extreme by a degree or two.

ECMWF ensemble meteogram

ECMWF ensemble meteogram for this place: box plots of cloud cover, precipitation, wind speed and temperature from the 51 ensemble members for ten days.
Rendered by ECMWF from its 51-member ensemble, in metric units: each box spans the middle half of the members, the whiskers the rest, the line the control run. A forecast, not an observation. © ECMWF, CC BY 4.0.

The next 90 days

NOAA GHCN normals and records at Detroit Lakes (DTL) · Climate Prediction Center outlooks

No forecast has skill day by day past about two weeks, and this page does not print one. Where the models stop, the calendar takes over: the 1991 to 2020 normal for each date, the record high and low ever set on it, and where the Climate Prediction Center leans warm, cool, wet or dry over the coming weeks, the month and the season. A site that shows a high for a date three months out is showing you this normal with a wobble.

The forecast reaches Wed Oct 14, from the NWS grid, then the National Blend, then the mean of the global models. Beyond it the lines are the calendar.

Climate Prediction Center (CPC) temperature lean33%40%warmer 33% · Oct 202650% chance above normal · Oct to Dec-40°-20°0°20°40°60°80°TodayOct 1Nov 1Dec 1

Forecast high and lowNormal high and lowRecord high and lowCPC leans warmer than normal

Week ofNormalWarmest on recordColdest on recordTemperature leanPrecipitation lean
Sep 2964° / 39°90° (2023)14° (1935)33% chance above normal · Oct 2026equal chances · Oct 2026
Oct 660° / 37°91° (2015)11° (1976)40% chance above normal · days 8 to 1440% chance below normal · days 8 to 14
Oct 1356° / 35°87° (1910)7° (1972)33% chance above normal · Oct 2026equal chances · Oct 2026
Oct 2050° / 32°88° (1947)-10° (1919)33% chance above normal · Oct 2026equal chances · Oct 2026
Oct 2746° / 32°78° (1955)-4° (1951)33% chance above normal · Oct 2026equal chances · Oct 2026
Nov 343° / 25°75° (1904)-16° (1951)50% chance above normal · Oct to Decequal chances · Oct to Dec
Nov 1043° / 23°69° (1909)-22° (1911)50% chance above normal · Oct to Decequal chances · Oct to Dec
Nov 1736° / 18°70° (1953)-23° (1896)50% chance above normal · Oct to Decequal chances · Oct to Dec
Nov 2432° / 14°58° (2011)-32° (1905)50% chance above normal · Oct to Decequal chances · Oct to Dec
Dec 127° / 10°60° (1939)-40° (1896)50% chance above normal · Oct to Decequal chances · Oct to Dec
Dec 825° / 11°55° (1939)-48° (1901)50% chance above normal · Oct to Decequal chances · Oct to Dec
Dec 1524° / 7°53° (1939)-43° (1901)50% chance above normal · Oct to Decequal chances · Oct to Dec
Dec 2224° / 6°49° (2011)-41° (1903)50% chance above normal · Oct to Decequal chances · Oct to Dec

Health and activities

Rules of thumb over the next 24 hours of forecast, the warnings in force, the station’s report, air quality and pollen

None of these is a measurement. Each is a rating of the forecast ahead, and of what is happening at the point right now, against what the activity or the ailment is known to mind, and each names the figure that decided it. An ailment or a pest is rated as a risk, low to extreme; an activity, a chore or a journey as a condition, poor to ideal.

Each rating says which span it is for: the rest of today’s daylight, tonight, or the next 24 hours.

Health

  • Arthritisnext 24 hModeratehumid
  • Sinus pressurenext 24 hModeratehumid
  • Common coldtodayLowmild
  • FlutodayLowmild
  • Migrainenext 24 hModeratehumid
  • Asthmanext 24 hLowclean air
  • Heat stresstodayLowmild
  • SunburntodayLowweak sun
  • Frostbitenext 24 hLowmild
  • SleepingtonightIdealcool, quiet night

Outdoors

  • RunningtodayFairchance of rain
  • HikingtodayFairchance of rain
  • BikingtodayFairchance of rain
  • GolftodayFairchance of rain
  • FishingtodayIdealfine conditions
  • Boating and paddlingtodayFairfog
  • Beach and pooltodayPoorchance of rain
  • CampingtonightPoorrain overnight
  • StargazingtonightPoorovercast

Travel

  • Air travelnext 24 hGoodfog
  • Drivingnext 24 hGoodfog

Home and garden

  • Lawn mowingtodayFairchance of rain
  • GardeningtodayGoodchance of rain
  • Outdoor entertainingtodayPoorchance of rain
  • Drying laundry outsidetodayPoorchance of rain
  • Painting and outdoor projectstodayPoorchance of rain
  • FrosttonightLowmild

Pests

  • MosquitoestodayVery highwarm
  • TickstodayVery highwarm
  • Indoor pestsnext 24 hLowmild
  • Outdoor peststodayHighhumid

Stargazing

Worked out from the NWS hourly forecast and the sun and moon

Tonight has no dark, clear hour without a bright moon in this forecast. Rated poor.

Night ofRatingDarkClear hoursClear and moonlessMoon litTransparency (est.)DewStrongest wind
TuesdayPoor8:48 PM to 5:40 AM0 of 9None87%9 h5 mph
WednesdayPoor8:46 PM to 5:41 AM0 of 9None79%7 mph
ThursdayPoor8:44 PM to 5:42 AM0 of 9None70%3 mph
FridayPoor8:42 PM to 5:44 AM0 of 9None60%9 mph
SaturdayPoor8:40 PM to 5:45 AM0 of 9None49%6 h8 mph
SundayGood8:38 PM to 5:47 AM4 of 94 h from 9:00 PM39%Poor2 h2 mph
MondayPoor8:36 PM to 5:48 AM0 of 9None29%12 mph

Dark is the sun 18 degrees below the horizon; where it never gets that low, 12 degrees, marked nautical. Clear is sky cover of 20% or less. A bright moon is one above the horizon with a quarter or more of its disc lit. Transparency in the table is estimated from surface humidity (70% and 85% mark fair and poor) and visibility, since the forecast carries no haze or high cloud moisture. Seeing and transparency by hour, where shown, are Environment and Climate Change Canada’s astronomy forecast (regional model; seeing from cloud, wind shear, turbulence near the ground and the surface temperature trend; transparency from the moisture through the whole air column), under the Open Government Licence - Canada. Dew is the air within 2 °C of its dew point. Excellent is four or more clear moonless hours with good transparency; good is three; fair is one, or two clear hours.

Golden hour and blue hour

Computed from the sun and moon positions
DayBlue hour, morningGolden hour, morningGolden hour, eveningBlue hour, evening
Tue6:49 AM to 7:01 AM7:01 AM to 8:00 AM6:27 PM to 7:25 PM7:25 PM to 7:37 PM
Wed6:51 AM to 7:02 AM7:02 AM to 8:01 AM6:25 PM to 7:23 PM7:23 PM to 7:35 PM
Thu6:52 AM to 7:04 AM7:04 AM to 8:03 AM6:23 PM to 7:21 PM7:21 PM to 7:33 PM
Fri6:53 AM to 7:05 AM7:05 AM to 8:04 AM6:21 PM to 7:19 PM7:19 PM to 7:31 PM
Sat6:55 AM to 7:06 AM7:06 AM to 8:06 AM6:19 PM to 7:17 PM7:17 PM to 7:29 PM
Sun6:56 AM to 7:08 AM7:08 AM to 8:07 AM6:17 PM to 7:16 PM7:16 PM to 7:27 PM
Mon6:57 AM to 7:09 AM7:09 AM to 8:08 AM6:14 PM to 7:14 PM7:14 PM to 7:25 PM
NESWSRSSMRMS
  • SR Sunrise 7:20 AM, 93° E
  • SS Sunset 7:07 PM, 267° W
  • MR Moonrise 8:09 PM, 56° NE
  • MS Moonset 11:10 AM, 302° WNW
  • Waning gibbous, 90% lit

Golden hour is the sun between 6 degrees above the horizon and 4 degrees below it; blue hour is the sun between 4 and 6 degrees below. These are the definitions timeanddate.com and PhotoPills use. Directions are degrees clockwise from true north, where the sun’s upper edge and the moon’s center cross a flat horizon; hills and buildings change both. None means the sun does not reach that height on the day; all day means it stays inside the band.

Drone flying

NWS hourly forecast, SWPC Kp, FAA TFRs and 14 CFR Part 107

This hour: no-fly (gusts near or over your limit, wind at 400 ft near or over your limit, chance of rain, thunderstorms possible, night: lighting and night training required (107.29)). Next good stretch: Tue 5 PM to 7 PM, 2 hours.

Today: civil twilight for Part 107 6:50 AM to sunrise 7:20 AM, and sunset 7:07 PM to 7:37 PM. Anti-collision lighting is required in those minutes and at night.

Tue6 AM12 PM6 PM
Wed12 AM6 AM12 PM6 PM
Thu12 AM6 AM12 PM6 PM

Good Caution No-fly

HourVerdictWind (mph)400 ft est. (mph)Gust (mph)RainVisibilityCloud allowsTempKpWhy
Tue 2 AMNo-fly13182852%64°gusts near or over your limit, wind at 400 ft near or over your limit, chance of rain, thunderstorms possible, night: lighting and night training required (107.29)
Tue 3 AMNo-fly13182867%64°gusts near or over your limit, chance of rain, wind at 400 ft near or over your limit, thunderstorms possible, night: lighting and night training required (107.29)
Tue 4 AMNo-fly13182895%63°gusts near or over your limit, chance of rain, thunderstorms possible, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Tue 5 AMNo-fly13182888%61°gusts near or over your limit, chance of rain, thunderstorms possible, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Tue 6 AMNo-fly13182675%61°gusts near or over your limit, chance of rain, thunderstorms possible, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Tue 7 AMNo-fly13182692%61°gusts near or over your limit, chance of rain, thunderstorms possible, wind at 400 ft near or over your limit, civil twilight: lighting required (107.29)
Tue 8 AMNo-fly12172691%61°gusts near or over your limit, chance of rain, thunderstorms possible
Tue 9 AMNo-fly12172683%61°gusts near or over your limit, chance of rain, thunderstorms possible
Tue 10 AMNo-fly10152468%62°gusts near or over your limit, chance of rain, thunderstorms possible
Tue 11 AMNo-fly12172565%63°gusts near or over your limit, chance of rain, thunderstorms possible
Tue 12 PMNo-fly12172545%64°gusts near or over your limit, chance of rain, thunderstorms possible
Tue 1 PMNo-fly12172536%64°gusts near or over your limit, chance of rain, thunderstorms possible
Tue 2 PMCaution10132118%65°gusts near or over your limit, thunderstorms possible
Tue 3 PMCaution10132012%66°gusts near or over your limit, thunderstorms possible
Tue 4 PMCaution9121915%66°gusts near or over your limit
Tue 5 PMGood810177%66°nothing against it
Tue 6 PMGood67141%65°nothing against it
Tue 7 PMCaution518230%64°wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training required (107.29)
Tue 8 PMCaution314180%62°gusts near or over your limit, night: lighting and night training required (107.29)
Tue 9 PMCaution314180%61°gusts near or over your limit, night: lighting and night training required (107.29)
Tue 10 PMCaution314180%60°gusts near or over your limit, night: lighting and night training required (107.29)
Tue 11 PMCaution314180%60°gusts near or over your limit, night: lighting and night training required (107.29)
Wed 12 AMCaution511160%59°night: lighting and night training required (107.29)
Wed 1 AMCaution511160%59°night: lighting and night training required (107.29)

Flight restrictions nearby

Reading the FAA’s temporary flight restrictions.

Flight restrictions on the map. TFRs are not the whole picture: controlled airspace around airports needs LAANC authorization. Check the FAA’s B4UFLY.

Wind at 400 ft is estimated from the 10 m forecast by the power law, with exponents for each Pasquill stability class (Irwin 1979, rural, as in EPA dispersion models; the class from wind, sun height and cloud, after Turner 1970); gusts keep the ground gust’s margin. Caution from three quarters of your limit; the default 24 mph is the wind resistance printed for common sub-250 g drones. 14 CFR 107.51: “The minimum flight visibility, as observed from the location of the control station must be no less than 3 statute miles” and at least “500 feet below the cloud”. 14 CFR 107.29: “No person may operate a small unmanned aircraft system during periods of civil twilight unless the small unmanned aircraft has lighted anti-collision lighting visible for at least 3 statute miles”; civil twilight is the 30 minutes before sunrise and after sunset, in Alaska the Air Almanac’s. Kp: SWPC’s scales say satellite navigation problems may occur at G3 (Kp 7) and navigation is “degraded for hours” at G4 (Kp 8); Kp 5 is the typical app warning. Typical limits, not rules: rain chance 30% caution and 60% no-fly, thunder 10% and 20%, below 0 °C caution and −10 °C no-fly, over 40 °C caution. Your drone’s manual and the airspace come first.

Spraying and field work

Worked out from the NWS hourly forecast

Hours fit for spraying, and the days dry enough for fieldwork and hay, read from this forecast’s wind, gusts, humidity, temperature and rain.

Spraying windows

  • Wed 11 AM to 3 PM 4 hours, every hour within the rules
  • Wed 6 PM to Thu 10 AM 16 hours, every hour within the rules
  • Thu 6 PM to 10 PM 4 hours, every hour within the rules
  • Fri 11 AM to 7 PM 8 hours, every hour within the rules
  • Fri 8 PM to Sat 3 AM 7 hours, every hour within the rules
  • Sun 5 PM to 9 PM 4 hours, every hour within the rules
Tue6 AM12 PM6 PM
Wed12 AM6 AM12 PM6 PM
Thu12 AM6 AM12 PM6 PM
Fri12 AM6 AM12 PM6 PM

Good Marginal No

Field days

DayDaytimeChance of rainRainLowest humidityStrongest windDry days in a rowHay drying
TuesdayWet91%0.68 in93%12 mph
WednesdayDry0%0.00 in61%9 mph3 d
ThursdayDry0%0.00 in46%13 mph2 dGood
FridayDry9%0.00 in47%7 mph1 dGood
SaturdayWet37%0.26 in67%14 mph
SundayDry2%0.00 in55%10 mph3 d
MondayDry2%0.00 in59%13 mph2 d
TuesdayDry10%0.00 in67%15 mph1 d

Spraying: sustained wind 3 to 10 mph, the range US extension services and most labels give; gusts no more than 15 mph (this page’s limit); delta T (air minus wet-bulb temperature) 2 to 8 °C preferred and 8 to 10 °C marginal, from GRDC guidance, with the wet bulb by Stull’s formula; no hour at a 30% chance of rain or 0.25 mm forecast during the rain-free time. Follow the product label, which overrides all of this. Field days: dry is no daytime hour at a 30% chance and under 1 mm all day, wet is 6 mm (0.25 in) or more; soil moisture is not in the forecast, so ground still wet from earlier rain is not accounted for. Hay drying marks a dry day with humidity down to 50% and a breeze of 5 mph or more.

Solunar times

Computed from the moon’s position

The best-rated day this week is Tuesday, rated good.

DayRatingMajor periodsMinor periodsMoonSunrise, sunset
Tue Good2:16 AM to 4:16 AM2:44 PM to 4:44 PM10:40 AM to 11:40 AM7:39 PM to 8:39 PM 90%7:20 AM, 7:07 PM
Wed Poor3:12 AM to 5:12 AM3:42 PM to 5:42 PM12:01 PM to 1:01 PM8:17 PM to 9:17 PM 82%7:21 AM, 7:05 PM
Thu Fair4:12 AM to 6:12 AM4:44 PM to 6:44 PM1:18 PM to 2:18 PM9:07 PM to 10:07 PM 73%7:22 AM, 7:03 PM
Fri Fair5:15 AM to 7:15 AM5:46 PM to 7:46 PM2:23 PM to 3:23 PM10:12 PM to 11:12 PM 64%7:24 AM, 7:01 PM
Sat Fair6:18 AM to 8:18 AM6:48 PM to 8:48 PM3:14 PM to 4:14 PM11:28 PM to 12:28 AM 53%7:25 AM, 6:59 PM
Sun Fair7:17 AM to 9:17 AM7:46 PM to 9:46 PM3:52 PM to 4:52 PM 43%7:26 AM, 6:57 PM
Mon Fair8:13 AM to 10:13 AM8:40 PM to 10:40 PM12:48 AM to 1:48 AM4:21 PM to 5:21 PM 32%7:28 AM, 6:55 PM

Periods in bold fall within an hour of sunrise or sunset. The weather’s side is the fishing index

Major periods are two hours centered on the moon’s passage overhead and underfoot; minor periods are one hour centered on moonrise and moonset: the conventional durations of John Alden Knight’s solunar tables (1936). The rating is this site’s: one point to start, two more within a day and a half of a new or full moon (one more within three and a half days), and one more when a period falls within an hour of sunrise or sunset. The theory has mixed support in fisheries research; the times are exact astronomy.

In words

NWS forecast periods, as issued
  1. Overnight61° · 95% · S 13 mph

    Showers and thunderstorms. Cloudy, with a low around 61. South wind around 13 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

  2. Tuesday68° · 92% · SW 8–13 mph

    Showers and thunderstorms before 8am, then patchy fog and showers and thunderstorms between 8am and 2pm, then a slight chance of showers and thunderstorms between 2pm and 5pm. Mostly cloudy. High near 68, with temperatures falling to around 66 in the afternoon. Southwest wind 8 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

  3. Tuesday Night54° · 1% · SW 6 mph

    Partly cloudy. Low around 54, with temperatures rising to around 56 overnight. Southwest wind around 6 mph. New rainfall amounts less than a tenth of an inch possible.

  4. Wednesday72° · SW 5–9 mph

    Mostly sunny, with a high near 72. Southwest wind 5 to 9 mph.

  5. Wednesday Night45° · NW 7 mph

    Partly cloudy, with a low around 45. Northwest wind around 7 mph.

  6. Thursday60° · NW 6–13 mph

    Sunny, with a high near 60. Northwest wind 6 to 13 mph.

  7. Thursday Night41° · 2% · WNW 1–8 mph

    Partly cloudy, with a low around 41. West northwest wind 1 to 8 mph.

  8. Friday59° · 2% · SW 1–7 mph

    Mostly sunny, with a high near 59. Southwest wind 1 to 7 mph.

  9. Friday Night44° · 15% · SSE 2–9 mph

    A slight chance of rain showers after 1am. Mostly cloudy, with a low around 44. South southeast wind 2 to 9 mph. Chance of precipitation is 20%.

  10. Saturday60° · 37% · SSW 9–14 mph

    A chance of rain showers. Mostly cloudy, with a high near 60. South southwest wind 9 to 14 mph. Chance of precipitation is 40%.

  11. Saturday Night42° · 34% · WNW 6–10 mph

    A chance of rain showers before 7pm. Partly cloudy, with a low around 42. West northwest wind 6 to 10 mph. Chance of precipitation is 30%.

  12. Sunday57° · 4% · NW 6–10 mph

    Sunny, with a high near 57. Northwest wind 6 to 10 mph.

  13. Sunday Night39° · 2% · NE 2–6 mph

    Mostly clear, with a low around 39. Northeast wind 2 to 6 mph.

  14. Monday59° · 2% · S 3–13 mph

    Mostly sunny, with a high near 59. South wind 3 to 13 mph.

The forecaster’s discussion

NWS Grand Forks, ND · issued Sep 28, 11:53 PM CDT

Written by the forecaster on duty for their own colleagues and for anyone who wants to know why the forecast says what it says. It is not edited for the public, so it uses the office’s shorthand; it is also the most honest thing any weather service publishes.

KEY Messages

Widespread soaking rainfall with embedded thunderstorms will continue this afternoon through tonight. Localized flooding impacts may occur in portions of southeast North Dakota into central and southern Red River Valley from rainfall amounts 3 to 6 inches.

Discussion

301 PM CDT Mon Sep 28 2026

...Synopsis...

Broad southwest flow aloft currently resides over the Northern Plains and Upper Midwest as a result of longwave upper troughing in the West. This is helping draw northward increasing moisture content, while also allowing several shortwave troughs embedded within the flow aloft to provide forcing for ascent to drive widespread rainfall into the eastern Dakotas and northern Minnesota this afternoon through tonight. Weak but sufficient instability accompanying the surge in moisture will also allow embedded thunderstorms to be present, especially tonight. Two or more "waves" of rainfall with embedded thunderstorms will drive potential for training higher rain rates - bringing potential for localized flooding impacts. More details on this potential found below.

Tuesday morning, rainfall should end west to east, with most/all of the area becoming dry by the afternoon. This will usher in a relatively dry period through the remainder of the week, with the exception of some transient showers potentially late week/weekend, but ultimately resulting in little rainfall amounts, if any. This is a result of generally zonal to northwest flow aloft amid upper ridging building over the High Plains/Intermountain West. Near to above average temperatures are forecast through Wednesday, turning average to below average temperatures late this week.

...Potential flooding impacts this afternoon & tonight...

There remains potential for an additional 3 to 6 inches of rainfall this afternoon through tonight in portions of southeast ND, central/southern Red River Valley, into northwest MN. The majority of CAMs continue to paint this scenario somewhere within the aforementioned areas, but each with their own variety of exactly where this will occur. Locations that experience these amounts are liable to see flooding impacts.

Confidence is relatively high in this output based on the presence of a stationary boundary extending southwest to northeast generally from the southern James River Valley in southeast ND into the central Red River Valley into northwest MN. This sets the stage for additional upper forcing to act upon, which is well advertised to resurge tonight in the form of a shortwave trough propagating out of the High Plains of WY/SD, through the Dakotas, and into northwestern ON by Tuesday morning. This will help reinvigorate the low level jet within the "warm sector" of the aforementioned stationary front - suggested to generally remain in this orientation/position through the event, with some eventual movement eastward Tuesday morning.

Abnormally high moisture content (~1.5 inches of PWATs) coupled with weak but sufficient instability (MUCAPE ~800 J/kg), and storm motion generally parallel to frontal orientation will drive high rain rates. Rain rates like 0.5-1" per hour and/or 2-4" per 6 hours will result in areas that see repeated thunderstorms move over any particular location for at least 2 hours.

Pre-conditioned areas that have recently experienced soaking rainfall is also important to consider when identifying potential areas for subsequent flooding impacts. While these advertised highest rain rates may occur in northwest MN, higher rain amounts from this morning have generally missed this area. Conversely within southeast ND, rainfall from this morning in the 1-2 inch range have already occurred, with continued convective rates from thunderstorms still ongoing in southeast ND at the time of this Forecast Discussion issuance. Despite this area in drought, higher rain rates coupled with previously/currently received rainfall still allow for excessive runoff.

Of course, urban areas are relatively more susceptible to these higher rain rates; this includes cities like Fargo-Moorhead and/or Valley City.

While the overall area of concern holds generally medium to high confidence, more precise location of highest rainfall amounts remain in question. Because of this, have opted to not issue a Flood Watch; however, a Flood Watch may be issued should confidence increase in more precise location of potential area of concern later this afternoon/early evening.

Aviation · 06Z TAFs Through 06Z Wednesday

1153 PM CDT Mon Sep 28 2026

Highly variable flight conditions as a frontal zone lingers over the region and clusters of showers and embedded thunderstorms track southwest to northeast. Many locations are reporting MVFR and IFR conditions. Stratus should fill in through the overnight hours and IFR ceilings will become predominant with the potential for LIFR (mainly KDVL). Fog may also develop in areas outside of showers tonight/Tuesday morning. Drier air does eventually arrives Tuesday and VFR should return to ND by early afternoon, with a slower west to east period of improvement in the afternoon/evening across northwest MN. MVFR ceilings may linger over north central MN including KBJI through Tuesday evening.

FGF Watches / Warnings / Advisories

ND...Flood Watch until 5 AM CDT Tuesday for NDZ038-039-049. MN...Flood Watch until 5 AM CDT Tuesday for MNZ003.

Hazardous weather outlook Sep 28, 2:27 PM CDT

The office’s own seven-day heads-up for spotters and emergency managers.

FLUS43 KFGF 281927
HWOFGF

Hazardous Weather Outlook
National Weather Service Grand Forks ND
227 PM CDT Mon Sep 28 2026

NDZ006>008-014>016-024-026-054-291930-
Towner-Cavalier-Pembina-Benson-Ramsey-Eastern Walsh-Eddy-Nelson-
Western Walsh-
227 PM CDT Mon Sep 28 2026

This hazardous weather outlook is for portions of eastern North
Dakota.

.DAY ONE...This Afternoon and Tonight

Widespread rainfall remains forecast this afternoon through
tonight. Additional rainfall amounts up to 2 inches is possible
(20% chance).


.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today.

$$

MNZ001>009-013>017-022>024-027>032-040-NDZ027>030-038-039-049-052-
053-291930-
West Polk-Norman-Clay-Kittson-Roseau-Lake Of The Woods-
West Marshall-East Marshall-North Beltrami-Pennington-Red Lake-
East Polk-North Clearwater-South Beltrami-Mahnomen-
South Clearwater-Hubbard-West Becker-East Becker-Wilkin-
West Otter Tail-East Otter Tail-Wadena-Grant-Grand Forks-Griggs-
Steele-Traill-Barnes-Cass-Ransom-Sargent-Richland-
227 PM CDT Mon Sep 28 2026

This hazardous weather outlook is for portions of eastern North
Dakota, west central and northwest Minnesota.

.DAY ONE...This Afternoon and Tonight

Widespread rainfall with embedded thunderstorms remains forecast 
this afternoon through tonight. 

Localized flooding impacts are possible from highest rainfall 
amounts 3 to 6 inches in portions of southeast North Dakota into 
central and southern Red River Valley (20% chance). While
confidence is high in these amounts to occur, uncertainty remains
in exactly where this will occur.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today.

$$

The outlooks beyond

SPC, WPC, CPC and the Drought Monitor, read at this point

The national centers each publish a judgment the local grid does not carry. Read here at this exact coordinate.

Severe weather

  1. Day 1 · Tue Sep 29General Thunderstorms Risk
  2. Day 2 · Wed Sep 30No risk area
  3. Day 3 · Thu Oct 1No risk area
  4. Day 4 · Fri Oct 2No risk area
  5. Day 5 · Sat Oct 3No risk area
  6. Day 6 · Sun Oct 4No risk area
  7. Day 7 · Mon Oct 5No risk area
  8. Day 8 · Tue Oct 6No risk area

Rainfall

  1. Day 1 · Tue Sep 290.25 in
  2. Day 2 · Wed Sep 30Under 0.01 in
  3. Day 3 · Thu Oct 1Under 0.01 in
  4. Day 4-5 · Oct 2–Oct 30.25 in
  5. Day 6-7 · Oct 4–Oct 5Under 0.01 in

The rainfall forecast on the map, days 1 to 7

Flash flood risk

  1. Day 1 · Tue Sep 29Slight
  2. Day 2 · Wed Sep 30Below marginal
  3. Day 3 · Thu Oct 1Below marginal
  4. Day 4 · Fri Oct 2Below marginal
  5. Day 5 · Sat Oct 3Below marginal

Six to fourteen days

  1. Days 6–10 · Temperature33% chance above normalOct 4–Oct 8
  2. Days 6–10 · Precipitation40% chance below normalOct 4–Oct 8
  3. Days 8–14 · Temperature40% chance above normalOct 6–Oct 12
  4. Days 8–14 · Precipitation40% chance below normalOct 6–Oct 12

Drought

  1. Drought Monitor, map of Sep 22D1 Moderate drought
  2. Outlook for Sep 2026Drought persists

Drought in this county: the map, the record since 2000 and the outlook

Frost and climate

NOAA 1991-2020 normals, Detroit Lakes 1 Nne

The last spring freeze (32°F) usually comes around May 15 and the first fall freeze around September 24: a growing season of about 130 days.

One fall in ten brings a freeze by September 9; one spring in ten still has one after May 30.

Climate of 46.82, -95.86: normals, records and every month

Everything else on the grid

NWS forecast grid · 23 elements

The forecast office edits about sixty fields for every cell of its grid. The common ones are above; these are the rest, as the daily extreme, for anyone who needs the mixing height, the fire danger or the swell.

ElementTueWedThuFriSatSunMonTue
Wet bulb globe temperature max67°68°55°55°56°54°55°60°
Heat index max71°
Wind chill min42°41°41°39°37°41°
Chance of thunder max22%0%0%3%6%3%2%2%
Mixing height max1,400 ft3,100 ft4,600 ft3,100 ft2,300 ft4,000 ft
Transport wind max18 mph15 mph17 mph16 mph15 mph21 mph

Against the record

NOAA GHCN · Detroit Lakes (DTL) · 1.2 mi away

Each forecast day against the same calendar date at the nearest long-record station: the 1991 to 2020 normal, and the record high and low with the year they were set.

DayForecastNormalRecord highRecord low
Tue Sep 2968° / 54°65° / 43°89° (2025)15° (1899)
Wed Sep 3072° / 45°66° / 42°86° (2012)18° (1899)
Thu Oct 160° / 41°64° / 40°90° (2023)21° (1984)
Fri Oct 259° / 44°64° / 39°90° (1897)15° (1974)
Sat Oct 360° / 42°—89° (1922)15° (1989)
Sun Oct 457° / 39°59° / 41°86° (1922)17° (1935)
Mon Oct 559° / 45°58° / 40°90° (1963)14° (1935)
Tue Oct 664° / 47°57° / 40°86° (1909)11° (1976)

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Tue6:49 AM7:20 AM7:07 PM7:37 PM11 h 47 min Waning gibbous · 90% lit
Wed6:51 AM7:21 AM7:05 PM7:35 PM11 h 44 min Waning gibbous · 82% lit
Thu6:52 AM7:22 AM7:03 PM7:33 PM11 h 41 min Waning gibbous · 73% lit
Fri6:53 AM7:24 AM7:01 PM7:31 PM11 h 37 min Waning gibbous · 64% lit
Sat6:55 AM7:25 AM6:59 PM7:29 PM11 h 34 min Last quarter · 53% lit
Sun6:56 AM7:26 AM6:57 PM7:27 PM11 h 31 min Last quarter · 43% lit
Mon6:57 AM7:28 AM6:55 PM7:25 PM11 h 27 min Waning crescent · 32% lit
Tue6:59 AM7:29 AM6:53 PM7:23 PM11 h 24 min Waning crescent · 23% lit

Forecast from the National Weather Service forecast grid at api.weather.gov, updated by the local office through the day; the written periods and hourly digest are the NWS’s own. Outlooks from the Storm Prediction Center, the Weather Prediction Center and the Climate Prediction Center via NOAA’s map services. Records and normals from NOAA’s Global Historical Climatology Network. Sun and moon computed here. Place names from GeoNames (CC BY 4.0).

What is here

Seven days
The high, the low, the chance and amount of rain and snow, the wind and the forecaster’s words for each day and night, from the National Weather Service grid for the exact cell your town sits in.
Hour by hour
Temperature, what it feels like, dew point, humidity, chance and amount of precipitation, wind and gusts, sky cover, the chance of thunder, pressure, visibility and ceiling, as a chart and as a table, with nights shaded.
Everything else on the grid
The office edits about sixty fields for every cell. The ones the mainstream forecast pages leave out are here as a daily table: HeatRisk, wet bulb globe temperature, lightning activity, mixing height, transport wind, the fire weather indices, and at the coast the waves and swell.
The discussion
The Area Forecast Discussion the forecaster wrote to explain the forecast, in their own words, with the specialist annexes folded away. Also the office’s hazardous weather outlook.
Beyond the week
The Storm Prediction Center’s severe weather category for each of the next eight days, the Weather Prediction Center’s rainfall forecast to day seven and its winter storm severity, and the Climate Prediction Center’s odds for days six to fourteen, all read at your coordinate.
Against the record
Each forecast day beside the same date at the nearest long-record station: the thirty-year normal and the record high and low with their years, so a forecast high that would break a record says so.
The next 90 days
The forecast as far as the grid, the National Blend and the global models reach, and the calendar after that: the normal and the record for every date, with the Climate Prediction Center’s lean for the weeks, the month and the season drawn over them. No made-up highs for a date three months out.

Common questions

Where does this forecast come from?

From the National Weather Service forecast grid published at api.weather.gov, the same grid the local forecast office edits through the day and the source of every forecast on weather.gov. The written periods, the hourly digest and the forecaster’s discussion are the NWS’s own products, shown as issued. Nothing here is a blend a website made.

How far ahead does it go?

The grid runs seven days ahead, hour by hour for the first days and in three to six hour steps after that. The National Blend of Models carries the days to eleven and the global models to sixteen. Beyond that the page carries the national centers’ outlooks, severe weather to day eight, rainfall to day seven, and the Climate Prediction Center’s odds for the coming weeks, month and season, over a ninety-day calendar of the normal and the record for each date. No forecast has skill day by day past about two weeks, and this page does not print one.

Why is this different from the app on my phone?

Most forecast apps show a blend of models chosen by the company that makes the app. This page shows the forecast the local National Weather Service office issues, edited by the forecasters who will also issue the warnings, and it shows all of it rather than the six numbers that fit on a phone. The discussion explains the reasoning, which no app carries.

What is a place’s address here?

Every town has its own page, such as /forecast/us/oklahoma/oklahoma-city/, and every day at a town has one too. A ZIP code typed into the search goes to the town it belongs to. Any coordinate at all can be looked up, and the page names the nearest town.

What the weather actually was · Open the live radar · Where the data comes from