Current weather · Oct 2, 7:20 AM CDT

47.1800, -95.7780

35°

Widespread frostFeels like 35° · Humidity 92%NWS forecast for this hour; no recent station reportForecast by NWS Grand Forks, ND · grid 133,71
High
58°
Low
35°
Rain today
11%
Sunrise
7:24 AM
Sunset
7:00 PM
First issued 18 hours agoExpires in 2 hours · 9:00 AM CDT

All alerts for this county, and its warning history

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
Fri 7 AMWidespread frost35°35°33°92%0%W1 mph3 mph21%——
Fri 8 AMAreas of frost37°37°34°89%0%WSW1 mph3 mph33%——
Fri 9 AM42°42°35°76%0%SW1 mph5 mph10%——
Fri 10 AM48°48°36°63%0%WSW1 mph5 mph7%——
Fri 11 AM51°51°36°56%0%W3 mph7 mph11%——
Fri 12 PM54°54°35°48%0%WSW3 mph8 mph15%——
Fri 1 PM56°56°34°43%0%WSW5 mph9 mph29%——
Fri 2 PM57°57°34°42%0%SW5 mph10 mph36%——
Fri 3 PM58°58°34°40%0%SW5 mph12 mph42%——
Fri 4 PM58°58°34°40%6%SW5 mph12 mph34%——
Fri 5 PM57°57°34°42%3%SSW5 mph12 mph51%——
Fri 6 PM56°56°36°47%6%S3 mph9 mph64%——
Fri 7 PM53°53°36°52%6%S3 mph8 mph70%1%——
Fri 8 PM51°51°37°59%9%SSE5 mph9 mph85%1%——
Fri 9 PM49°47°37°63%10%SSE6 mph12 mph91%1%——
Fri 10 PM49°46°38°66%11%SSE8 mph14 mph82%1%——
Fri 11 PM49°46°38°66%11%SSE8 mph15 mph91%1%——
Sat 12 AM49°45°38°66%10%SSE9 mph16 mph93%1%——
Sat 1 AMSlight chance of light rain showers50°46°37°61%16%SSE10 mph18 mph89%6%——
Sat 2 AMSlight chance of light rain showers49°44°36°61%15%SSE13 mph20 mph77%6%——
Sat 3 AMSlight chance of light rain showers48°43°36°63%17%SSE13 mph21 mph77%6%——
Sat 4 AMSlight chance of light rain showers48°42°36°63%17%SSE14 mph22 mph75%7%——
Sat 5 AMSlight chance of light rain showers48°42°37°65%16%SSE15 mph23 mph79%7%——
Sat 6 AMSlight chance of light rain showers48°42°38°68%15%SSE16 mph24 mph72%7%——
Sat 7 AM48°42°40°74%7%SSE16 mph24 mph87%3%——
Sat 8 AM48°42°42°80%5%S17 mph25 mph86%3%——
Sat 9 AM51°51°45°80%0%S16 mph25 mph74%——
Sat 10 AM53°53°45°74%1%S16 mph24 mph51%1%——
Sat 11 AM56°56°45°66%4%S16 mph24 mph51%——
Sat 12 PM58°58°46°64%0%SSW15 mph23 mph45%——
Sat 1 PM60°60°47°62%9%SSW14 mph22 mph43%2%——
Sat 2 PM62°62°47°58%0%SW14 mph21 mph38%——
Sat 3 PM63°63°48°58%0%SW14 mph22 mph48%——
Sat 4 PM64°64°49°58%0%WSW13 mph21 mph63%——
Sat 5 PM63°63°49°60%0%W13 mph21 mph43%——
Sat 6 PM62°62°48°60%0%W12 mph20 mph27%——
Sat 7 PM60°60°48°64%1%WNW9 mph17 mph8%1%——
Sat 8 PM56°56°48°74%1%NW10 mph18 mph22%1%——
Sat 9 PM54°54°48°80%1%NW12 mph20 mph14%1%——
Sat 10 PM52°52°47°83%1%NW12 mph20 mph6%——
Sat 11 PM50°46°46°86%1%NW10 mph18 mph6%——
Sun 12 AM49°45°45°86%1%NW9 mph17 mph5%——
Sun 1 AM47°43°44°89%0%NW8 mph15 mph5%——
Sun 2 AM45°41°43°93%0%NW8 mph14 mph9%——
Sun 3 AM44°40°42°93%0%NW7 mph14 mph13%——
Sun 4 AM42°38°41°96%0%NW7 mph13 mph17%——
Sun 5 AM41°36°41°100%0%NW7 mph12 mph23%——
Sun 6 AM41°37°39°93%0%WNW6 mph10 mph28%——

The next 16 days

NWS grid published Oct 2, 5:36 AM CDT to day 8, the National Blend of Models to day 10, the mean of GFS, ECMWF, ECMWF AI to day 16
  1. TodayOct 258°35°Widespread Frost then Sunny11%wind 8 mph · gusts 15 mph
  2. SatOct 364°39°Slight Chance Rain Showers then Partly Sunny17%wind 17 mph · gusts 25 mph
  3. SunOct 458°36°Sunny1%wind 12 mph · gusts 20 mph
  4. MonOct 561°47°Sunny0%wind 18 mph · gusts 29 mph
  5. TueOct 669°47°Mostly Sunny3%wind 17 mph · gusts 26 mph
  6. WedOct 765°44°Mostly Sunny5%wind 12 mph · gusts 21 mph
  7. ThuOct 863°43°Mostly Sunny5%wind 12 mph · gusts 20 mph
  8. FriOct 963°44°3%wind 13 mph · gusts 22 mph
  9. SatOct 1065°43°National Blend13%wind 18 mph · gusts 28 mph
  10. SunOct 1155°38°National Blend19%0.07 inwind 15 mph · gusts 23 mph
  11. MonOct 12~58°48°Model mean0.33 in
  12. TueOct 13~50°41°Model mean0.03 in
  13. WedOct 14~53°39°Model mean0.06 in
  14. ThuOct 15~51°44°Model mean0.25 in
  15. FriOct 16~44°39°Model mean0.30 in
  16. SatOct 17~37°32°Model mean0.03 in

Right now

NWS grid for this hour · UV from the EPA · air quality from AirNow
  • Feels like35°
  • WindCalm
  • Radar over this pointno reading
  • Humidity92%
  • Dew point33°
  • Pressure—
  • UV index—
  • Air quality—
  • Visibility—
  • Sunrise and sunsetSunrise · Sunset · not yet up
  • Moonrise10:40 PMMoonset 2:55 PM
  • Moon phaseWaning gibbous64% lit

The National Blend of Models

NOAA NBM v5.0 · run of Oct 2, 1:00 AM 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. TodayOct 258°43°NWS grid 58° / 35°rain 15%wind 8 mph · gusts 15 mph
  2. SatOct 364°39°NWS grid 64° / 39°rain 20%wind 17 mph · gusts 25 mph
  3. SunOct 458°36°NWS grid 58° / 36°rain 0%wind 10 mph · gusts 18 mph
  4. MonOct 561°47°NWS grid 61° / 47°rain 0%wind 20 mph · gusts 29 mph
  5. TueOct 669°47°NWS grid 69° / 47°rain 4%wind 17 mph · gusts 26 mph
  6. WedOct 765°44°NWS grid 65° / 44°rain 5%wind 12 mph · gusts 21 mph
  7. ThuOct 863°43°NWS grid 63° / 43°rain 3%wind 12 mph · gusts 20 mph
  8. FriOct 963°47°NWS grid 63° / 44°rain 3%wind 13 mph · gusts 22 mph
  9. SatOct 1065°43°Beyond the NWS gridrain 13%wind 18 mph · gusts 28 mph
  10. SunOct 1155°38°Beyond the NWS gridrain 19%0.07 inwind 15 mph · gusts 23 mph
  11. MonOct 1255°—Beyond the NWS gridrain 10%0.03 inwind 13 mph · gusts 21 mph
32°55°77°SatSunMonTueWedThuFri

BlendNWS gridChance of rain, hourly

The models, side by side

HRRR Oct 2, 1:00 AM CDT · GFS Oct 2, 1:00 AM CDT · GEFS Oct 2, 1:00 AM CDT · ECMWF Oct 1, 7:00 PM CDT · ECMWF AI Oct 1, 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°SatSunMonTueWedThuFri

DayNWS gridHRRRGFSGEFSECMWFECMWF AI
Today Oct 258° 35°59° 36°59° 38°59° 39°59° 40°~59° 36°
Sat Oct 364° 39°68° 47°63° 51°0.02 in61° 51°0.06 in~63° 48°0.07 in~60° 51°0.09 in
Sun Oct 458° 36°~49° 47°60° 43°59° 43°60° 44°~60° 42°
Mon Oct 561° 47°—60° 41°60° 40°64° 44°~62° 38°
Tue Oct 669° 47°—71° 52°67° 51°~70° 55°~70° 52°
Wed Oct 765° 44°—64° 48°65° 51°66° 47°~67° 49°
Thu Oct 863° 43°—61° 49°61° 47°~65° 47°0.12 in~60° 46°0.03 in
Fri Oct 963° 44°—64° 42°63° 44°~56° 43°~60° 39°
Sat Oct 10——73° 55°65° 51°0.02 in~68° 51°~71° 55°
Sun Oct 11——63° 53°57° 47°0.01 in~73° 69°~48° 41°0.04 in
Mon Oct 12——~55° 50°0.78 in~46° 46°~73° 55°0.15 in~44° 38°0.06 in
Tue Oct 13——~54° 45°0.03 in—~47° 42°0.04 in~47° 37°0.02 in
Wed Oct 14——~60° 46°—~50° 37°0.11 in~49° 34°0.07 in
Thu Oct 15——~54° 48°—~47° 38°0.22 in~52° 46°0.52 in
Fri Oct 16——~41° 36°0.60 in—~39° 33°~46° 42°
Sat Oct 17——~37° 32°0.03 in———

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 Mahnomen (3N8) · 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 Sat Oct 17, 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 lean40%50%50%warmer 40%50% chance above normal · Oct to Dec-40°-20°0°20°40°60°80°TodayNov 1Dec 1

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

Week ofNormalWarmest on recordColdest on recordTemperature leanPrecipitation lean
Oct 2—89° (1963)12° (1976)40% chance above normal · Oct 202640% chance below normal · Oct 2026
Oct 9—84° (2010)13° (1932)50% chance above normal · days 8 to 1440% chance below normal · days 8 to 14
Oct 16—78° (1963)4° (1930)40% chance above normal · Oct 202640% chance below normal · Oct 2026
Oct 23—79° (1963)5° (1976)40% chance above normal · Oct 202640% chance below normal · Oct 2026
Oct 30—72° (1978)-3° (1995)50% chance above normal · Oct to Decequal chances · Oct to Dec
Nov 6—72° (1931)-6° (1991)50% chance above normal · Oct to Decequal chances · Oct to Dec
Nov 13—65° (2025)-22° (1933)50% chance above normal · Oct to Decequal chances · Oct to Dec
Nov 20—57° (1990)-31° (1996)50% chance above normal · Oct to Decequal chances · Oct to Dec
Nov 27—56° (1962)-35° (1985)50% chance above normal · Oct to Decequal chances · Oct to Dec
Dec 4—56° (2023)-33° (1977)50% chance above normal · Oct to Decequal chances · Oct to Dec
Dec 11—47° (2025)-28° (1972)50% chance above normal · Oct to Decequal chances · Oct to Dec
Dec 18—45° (1994)-36° (1933)50% chance above normal · Oct to Decequal chances · Oct to Dec
Dec 25—48° (1994)-39° (1990)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 hLowsteady conditions
  • Common coldtodayLowmild
  • FlutodayLowmild
  • Migrainenext 24 hLowsteady conditions
  • Asthmanext 24 hLowclean air
  • Heat stresstodayLowmild
  • SunburntodayLowweak sun
  • Frostbitenext 24 hHighFreeze Warning in force
  • SleepingtonightIdealcool, quiet night

Outdoors

  • RunningtodayFairFreeze Warning in force
  • HikingtodayFairFreeze Warning in force
  • BikingtodayFairFreeze Warning in force
  • GolftodayFairFreeze Warning in force
  • FishingtodayFairFreeze Warning in force
  • Boating and paddlingtodayFairFreeze Warning in force
  • Beach and pooltodayPoorFreeze Warning in force
  • CampingtonightIdealfine conditions
  • StargazingtonightGoodbright moon

Travel

  • Air travelnext 24 hVery goodFreeze Warning in force
  • Drivingnext 24 hGoodFreeze Warning in force

Home and garden

  • Lawn mowingtodayPoorFreeze Warning in force
  • GardeningtodayPoorFreeze Warning in force
  • Outdoor entertainingtodayFairFreeze Warning in force
  • Drying laundry outsidetodayPoorFreeze Warning in force
  • Painting and outdoor projectstodayPoorFreeze Warning in force
  • FrosttonightModeratecold night

Pests

  • MosquitoestodayModeratewarm
  • TickstodayModeratewarm
  • Indoor pestsnext 24 hLowmild
  • Outdoor peststodayLowcool

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
FridayPoor8:42 PM to 5:43 AM0 of 9None60%15 mph
SaturdayGood8:40 PM to 5:44 AM8 of 93 h from 9:00 PM49%Poor5 h12 mph
SundayGood8:38 PM to 5:46 AM9 of 94 h from 9:00 PM39%Fair1 h3 mph
MondayPoor8:36 PM to 5:47 AM0 of 9None29%1 h18 mph
TuesdayPoor8:34 PM to 5:49 AM0 of 9None20%9 mph
WednesdayPoor8:32 PM to 5:50 AM0 of 9None12%6 mph
ThursdayPoor8:30 PM to 5:52 AM0 of 10None6%6 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
Fri6:53 AM to 7:05 AM7:05 AM to 8:04 AM6:20 PM to 7:19 PM7:19 PM to 7:31 PM
Sat6:54 AM to 7:06 AM7:06 AM to 8:06 AM6:18 PM to 7:17 PM7:17 PM to 7:29 PM
Sun6:56 AM to 7:08 AM7:08 AM to 8:07 AM6:16 PM to 7:15 PM7:15 PM to 7:27 PM
Mon6:57 AM to 7:09 AM7:09 AM to 8:09 AM6:14 PM to 7:13 PM7:13 PM to 7:25 PM
Tue6:58 AM to 7:10 AM7:10 AM to 8:10 AM6:12 PM to 7:11 PM7:11 PM to 7:23 PM
Wed7:00 AM to 7:12 AM7:12 AM to 8:11 AM6:10 PM to 7:09 PM7:09 PM to 7:21 PM
Thu7:01 AM to 7:13 AM7:13 AM to 8:13 AM6:08 PM to 7:07 PM7:07 PM to 7:19 PM
NESWSRSSMRMS
  • SR Sunrise 7:24 AM, 95° E
  • SS Sunset 7:00 PM, 265° W
  • MR Moonrise 10:40 PM, 47° NE
  • MS Moonset 2:55 PM, 313° NW
  • Waning gibbous, 64% 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: fly with caution (civil twilight: lighting required (107.29)). Next good stretch: Fri 8 AM to 7 PM, 11 hours.

Today: civil twilight for Part 107 6:54 AM to sunrise 7:24 AM, and sunset 7:00 PM to 7:30 PM. Anti-collision lighting is required in those minutes and at night.

Fri12 PM6 PM
Sat12 AM6 AM12 PM6 PM
Sun12 AM6 AM12 PM6 PM

Good Caution No-fly

HourVerdictWind (mph)400 ft est. (mph)Gust (mph)RainVisibilityCloud allowsTempKpWhy
Fri 7 AMCaution1140%35°civil twilight: lighting required (107.29)
Fri 8 AMGood1140%37°nothing against it
Fri 9 AMGood1150%42°nothing against it
Fri 10 AMGood1150%48°nothing against it
Fri 11 AMGood3480%51°nothing against it
Fri 12 PMGood3490%54°nothing against it
Fri 1 PMGood55100%56°nothing against it
Fri 2 PMGood55110%57°nothing against it
Fri 3 PMGood56130%58°nothing against it
Fri 4 PMGood56136%58°nothing against it
Fri 5 PMGood56133%57°nothing against it
Fri 6 PMGood34106%56°nothing against it
Fri 7 PMCaution38136%53°night: lighting and night training required (107.29)
Fri 8 PMCaution57119%51°night: lighting and night training required (107.29)
Fri 9 PMCaution681410%49°night: lighting and night training required (107.29)
Fri 10 PMCaution8121711%49°night: lighting and night training required (107.29)
Fri 11 PMCaution8121911%49°gusts near or over your limit, night: lighting and night training required (107.29)
Sat 12 AMCaution9132010%49°gusts near or over your limit, night: lighting and night training required (107.29)
Sat 1 AMCaution10152316%50°gusts near or over your limit, night: lighting and night training required (107.29)
Sat 2 AMNo-fly13182515%49°gusts near or over your limit, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sat 3 AMNo-fly13182617%48°gusts near or over your limit, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sat 4 AMNo-fly14202817%48°gusts near or over your limit, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sat 5 AMNo-fly15223016%48°gusts near or over your limit, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sat 6 AMNo-fly16233115%48°gusts near or over your limit, wind at 400 ft near or over your limit, 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

  • Fri 11 AM to Sat 12 AM 13 hours, every hour within the rules
  • Sun 10 AM to 12 PM 2 hours, every hour within the rules
  • Sun 5 PM to 8 PM 3 hours, every hour within the rules
  • Tue 11 PM to Wed 2 AM 3 hours, every hour within the rules
  • Wed 8 AM to 11 AM 3 hours, every hour within the rules
  • Wed 7 PM to Thu 5 AM 10 hours, every hour within the rules
  • Thu 8 AM to 11 AM 3 hours, every hour within the rules
  • Thu 6 PM to Fri 6 AM 12 hours, every hour within the rules
Fri12 PM6 PM
Sat12 AM6 AM12 PM6 PM
Sun12 AM6 AM12 PM6 PM
Mon12 AM6 AM12 PM6 PM

Good Marginal No

Field days

DayDaytimeChance of rainRainLowest humidityStrongest windDry days in a rowHay drying
FridayDry6%0.00 in40%5 mph8 d
SaturdayDry9%0.00 in58%17 mph7 d
SundayDry0%0.00 in44%12 mph6 dGood
MondayDry0%0.00 in41%17 mph5 dGood
TuesdayDry3%0.00 in55%17 mph4 d
WednesdayDry5%0.00 in43%12 mph3 dGood
ThursdayDry1%0.00 in44%12 mph2 dGood
FridayDry3%0.00 in48%13 mph1 dGood

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 Wednesday, rated good.

DayRatingMajor periodsMinor periodsMoonSunrise, sunset
Fri Fair5:15 AM to 7:15 AM5:46 PM to 7:46 PM2:25 PM to 3:25 PM10:10 PM to 11:10 PM 64%7:24 AM, 7:00 PM
Sat Fair6:17 AM to 8:17 AM6:48 PM to 8:48 PM3:16 PM to 4:16 PM11:26 PM to 12:26 AM 53%7:25 AM, 6:58 PM
Sun Fair7:17 AM to 9:17 AM7:45 PM to 9:45 PM3:53 PM to 4:53 PM 43%7:26 AM, 6:56 PM
Mon Fair8:13 AM to 10:13 AM8:39 PM to 10:39 PM12:47 AM to 1:47 AM4:21 PM to 5:21 PM 32%7:28 AM, 6:54 PM
Tue Poor9:05 AM to 11:05 AM9:29 PM to 11:29 PM2:08 AM to 3:08 AM4:44 PM to 5:44 PM 23%7:29 AM, 6:53 PM
Wed Good9:53 AM to 11:53 AM10:16 PM to 12:16 AM3:27 AM to 4:27 AM5:02 PM to 6:02 PM 15%7:30 AM, 6:51 PM
Thu Good10:39 AM to 12:39 PM4:43 AM to 5:43 AM5:19 PM to 6:19 PM 8%7:32 AM, 6:49 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. Today58° · 6% · WSW 1–5 mph

    Widespread frost before 9am. Sunny, with a high near 58. West southwest wind 1 to 5 mph.

  2. Tonight43° · 17% · SSE 3–15 mph

    A slight chance of rain showers after 1am. Mostly cloudy. Low around 43, with temperatures rising to around 48 overnight. South southeast wind 3 to 15 mph. Chance of precipitation is 20%.

  3. Saturday64° · 15% · SSW 13–17 mph

    A slight chance of rain showers before 7am. Partly sunny, with a high near 64. South southwest wind 13 to 17 mph. Chance of precipitation is 20%.

  4. Saturday Night39° · 1% · WNW 7–12 mph

    Mostly clear, with a low around 39. West northwest wind 7 to 12 mph.

  5. Sunday58° · NW 6–12 mph

    Sunny, with a high near 58. Northwest wind 6 to 12 mph.

  6. Sunday Night36° · ENE 1–6 mph

    Mostly clear, with a low around 36. East northeast wind 1 to 6 mph.

  7. Monday61° · SE 5–16 mph

    Sunny, with a high near 61. Southeast wind 5 to 16 mph.

  8. Monday Night47° · SSE 18 mph

    Partly cloudy, with a low around 47. South southeast wind around 18 mph, with gusts as high as 29 mph.

  9. Tuesday69° · 1% · SSW 13–17 mph

    Mostly sunny, with a high near 69. South southwest wind 13 to 17 mph.

  10. Tuesday Night47° · 3% · W 5–12 mph

    Partly cloudy, with a low around 47. West wind 5 to 12 mph.

  11. Wednesday65° · 2% · WNW 5–12 mph

    Mostly sunny, with a high near 65. West northwest wind 5 to 12 mph.

  12. Wednesday Night44° · 5% · W 5–8 mph

    Partly cloudy, with a low around 44. West wind 5 to 8 mph.

  13. Thursday63° · 5% · WNW 5–12 mph

    Mostly sunny, with a high near 63. West northwest wind 5 to 12 mph.

  14. Thursday Night43° · 1% · WSW 7 mph

    Partly cloudy, with a low around 43. West southwest wind around 7 mph.

The forecaster’s discussion

NWS Grand Forks, ND · issued Oct 2, 6:28 AM 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 frost and areas of freezing temperatures are forecast tonight into early Friday morning.

Update

628 AM CDT Fri Oct 2 2026

Several locations, outside of the Red River Valley and north of Highway 200, have seen temperatures near 32 degrees or slightly cooler this morning. Within the valley, temperatures are in the mid to upper 30s. Winds remain nearly calm, along with mostly clear skies.

Discussion

339 PM CDT Thu Oct 1 2026

...Synopsis...

Upper trough within Canada is spreading its influence over our region, with a feed of relatively dry, continental air mass infiltrating into the region. Surface high pressure settles into our area amid this dry, cooler air mass. With clear skies and predominately calm winds, ideal radiational cooling will allow for temperatures to dip into the mid 30s to upper 20s tonight/Friday morning. This will result in widespread frost and areas of freezing temperatures. Mid level clouds are forecast to spread into our area from the west, but expected to occur near sunrise still allowing for frost/freeze. Urban landscapes may not see frost/freezing temperatures due to locally warmer temperatures from urban heat island effects.

Additional chances for frost exist this weekend into next week, particularly Sunday night into Monday morning.

The upper pattern remains in a quasi-zonal flow through the weekend, with a progressive shortwave trough forecast to move through Friday night into Saturday. This will provide forcing for ascent bringing a medium chance for rain showers. This wave is likely to be devoid of overall moisture content, thus rain amounts are anticipated to be rather low - less than quarter of an inch. Rain may come in two bouts - the first Friday night associated with warm air advection and low level frontogenesis, with the second bout more during the day Saturday associated with the passage of the mid level wave and associated cold front.

Ensemble guidance suggests in transient shortwave ridging early next week, although the influence of this remains in question. There could be a brief trend in temperatures toward slightly above average temperatures; otherwise, temperatures are forecast to remain near average.

Aviation · 12Z TAFs Through 12Z Saturday

628 AM CDT Fri Oct 2 2026

VFR conditions prevail through the period at all TAF sites. Winds pick up slightly today out of the south to southeast, especially for KDVL, KGFK, and KTVF. Mid to high cloud cover will increase late this evening, with scattered light showers possible overnight into Saturday morning.

FGF Watches / Warnings / Advisories

ND...Frost Advisory until 9 AM CDT this morning for NDZ008-014-016- 024-026>030-038-039-049-052-053. Freeze Warning until 9 AM CDT this morning for NDZ006-007-015- 054. MN...Frost Advisory until 9 AM CDT this morning for MNZ001>004-007- 017-024-027>032-040. Freeze Warning until 9 AM CDT this morning for MNZ005-006-008- 009-013>016-022-023.

Hazardous weather outlook Oct 2, 4:43 AM CDT

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

FLUS43 KFGF 020943
HWOFGF

Hazardous Weather Outlook
National Weather Service Grand Forks ND
443 AM CDT Fri Oct 2 2026

MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-030945-
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-Towner-Cavalier-
Pembina-Benson-Ramsey-Eastern Walsh-Eddy-Nelson-Grand Forks-
Griggs-Steele-Traill-Barnes-Cass-Ransom-Sargent-Richland-
Western Walsh-
443 AM CDT Fri Oct 2 2026

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

.DAY ONE...Today and Tonight

Widespread frost and areas of freezing temperatures are likely
through mid morning.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

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 · Fri Oct 2No risk area
  2. Day 2 · Sat Oct 3General Thunderstorms Risk
  3. Day 3 · Sun Oct 4No risk area
  4. Day 4 · Mon Oct 5No risk area
  5. Day 5 · Tue Oct 6No risk area
  6. Day 6 · Wed Oct 7No risk area
  7. Day 7 · Thu Oct 8No risk area
  8. Day 8 · Fri Oct 9No risk area

Rainfall

  1. Day 1 · Fri Oct 2Under 0.01 in
  2. Day 2 · Sat Oct 30.01 in
  3. Day 3 · Sun Oct 4Under 0.01 in
  4. Day 4-5 · Oct 5–Oct 6Under 0.01 in
  5. Day 6-7 · Oct 7–Oct 8Under 0.01 in

The rainfall forecast on the map, days 1 to 7

Six to fourteen days

  1. Days 6–10 · Temperature50% chance above normalOct 7–Oct 11
  2. Days 6–10 · Precipitation40% chance below normalOct 7–Oct 11
  3. Days 8–14 · Temperature50% chance above normalOct 9–Oct 15
  4. Days 8–14 · Precipitation40% chance below normalOct 9–Oct 15

Drought

  1. Drought Monitor, map of Sep 29D1 Moderate drought
  2. Outlook for Oct 2026Drought removal likely

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

Frost and climate

NOAA 1991-2020 normals, Mahnomen

The last spring freeze (32°F) usually comes around May 7 and the first fall freeze around September 28: a growing season of about 143 days.

One fall in ten brings a freeze by September 15; one spring in ten still has one after May 24.

Climate of 47.18, -95.78: 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.

ElementFriSatSunMonTueWedThuFri
Wet bulb globe temperature max54°59°53°55°65°60°57°58°
Wind chill min34°42°36°32°43°45°43°40°
Chance of thunder max1%7%0%0%3%4%4%1%
Mixing height max4,600 ft3,500 ft5,600 ft4,100 ft2,400 ft5,100 ft3,100 ft
Transport wind max12 mph21 mph16 mph18 mph20 mph20 mph14 mph

Against the record

NOAA GHCN · Mahnomen (3N8) · 9.0 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
Fri Oct 258° / 35°—85° (1992)15° (1993)
Sat Oct 364° / 39°—88° (2025)14° (1989)
Sun Oct 458° / 36°—85° (2011)23° (1968)
Mon Oct 561° / 47°—89° (1963)25° (1988)
Tue Oct 669° / 47°—86° (1993)12° (1976)
Wed Oct 765° / 44°—85° (1975)16° (1989)
Thu Oct 863° / 43°—82° (2010)18° (1989)
Fri Oct 963° / 44°—84° (2010)16° (1993)

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Fri6:53 AM7:24 AM7:00 PM7:31 PM11 h 36 min Waning gibbous · 64% lit
Sat6:54 AM7:25 AM6:58 PM7:29 PM11 h 33 min Last quarter · 53% lit
Sun6:56 AM7:26 AM6:56 PM7:27 PM11 h 30 min Last quarter · 43% lit
Mon6:57 AM7:28 AM6:54 PM7:25 PM11 h 26 min Waning crescent · 32% lit
Tue6:58 AM7:29 AM6:53 PM7:23 PM11 h 24 min Waning crescent · 23% lit
Wed7:00 AM7:30 AM6:51 PM7:21 PM11 h 21 min Waning crescent · 15% lit
Thu7:01 AM7:32 AM6:49 PM7:19 PM11 h 17 min Waning crescent · 8% lit
Fri7:03 AM7:33 AM6:47 PM7:17 PM11 h 14 min Waning crescent · 3% 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