Current weather · Oct 3, 7:59 AM EDT

43.4110, -82.8060

40°

Mostly SunnyFeels like 38° · Humidity 100%NWS forecast for this hour; no recent station reportForecast by NWS Detroit/Pontiac, MI · grid 69,84
High
63°
Low
39°
Rain today
2%
Sunrise
7:31 AM
Sunset
7:09 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
Sat 7 AM40°38°40°100%0%NNW3 mph8 mph28%——
Sat 8 AM42°40°42°99%0%NNW3 mph7 mph22%——
Sat 9 AM47°46°47°100%0%N3 mph8 mph5%——
Sat 10 AM55°55°50°85%0%N3 mph8 mph27%——
Sat 11 AM58°58°48°71%0%NE3 mph8 mph30%——
Sat 12 PM59°59°47°65%0%ENE3 mph7 mph32%——
Sat 1 PM60°60°46°59%0%E3 mph7 mph40%——
Sat 2 PM61°61°47°59%0%E3 mph7 mph38%——
Sat 3 PM61°61°47°60%0%ESE3 mph8 mph40%——
Sat 4 PM62°63°47°57%0%ESE5 mph9 mph32%——
Sat 5 PM61°61°48°61%0%ESE6 mph10 mph27%——
Sat 6 PM60°60°47°63%0%ESE6 mph12 mph8%——
Sat 7 PM57°57°47°70%0%ESE5 mph9 mph4%——
Sat 8 PM51°51°46°83%1%ESE3 mph8 mph3%——
Sat 9 PM49°49°46°89%2%ESE2 mph6 mph39%——
Sat 10 PM48°48°45°90%2%SE2 mph6 mph47%——
Sat 11 PM47°47°45°94%2%SE2 mph7 mph49%——
Sun 12 AM45°45°44°95%2%SSE2 mph7 mph42%——
Sun 1 AM44°44°44°98%2%SSE2 mph7 mph46%——
Sun 2 AM43°43°43°100%2%SSE2 mph7 mph54%——
Sun 3 AM42°42°42°100%9%SE2 mph6 mph50%——
Sun 4 AMSlight chance of light rain showers42°43°42°99%16%SE2 mph6 mph51%——
Sun 5 AMSlight chance of light rain showers40°40°40°100%16%S1 mph5 mph52%1%——
Sun 6 AMSlight chance of light rain showers42°42°42°100%16%S1 mph5 mph69%1%——
Sun 7 AMSlight chance of light rain showers42°42°42°100%16%S1 mph5 mph73%1%——
Sun 8 AMSlight chance of light rain showers43°43°43°100%19%S2 mph5 mph75%2%——
Sun 9 AMSlight chance of light rain showers50°49°48°95%19%SSW3 mph7 mph61%2%——
Sun 10 AMSlight chance of light rain showers55°55°52°90%19%SW5 mph9 mph33%2%——
Sun 11 AMSlight chance of light rain showers58°58°52°81%19%SW6 mph13 mph16%——
Sun 12 PMSlight chance of light rain showers61°61°51°70%19%WSW8 mph15 mph19%——
Sun 1 PMSlight chance of light rain showers64°65°50°60%19%WSW9 mph17 mph19%——
Sun 2 PMSlight chance of light rain showers66°66°51°58%19%WSW10 mph20 mph30%——
Sun 3 PMSlight chance of light rain showers67°67°52°59%19%WSW12 mph21 mph55%——
Sun 4 PMSlight chance of light rain showers68°68°53°58%19%W12 mph22 mph65%——
Sun 5 PMSlight chance of light rain showers67°67°54°63%19%W12 mph21 mph59%2%——
Sun 6 PMSlight chance of light rain showers66°66°54°66%19%W10 mph20 mph69%2%——
Sun 7 PMSlight chance of light rain showers64°64°53°69%19%W9 mph18 mph70%2%——
Sun 8 PMSlight chance of light rain showers58°58°52°80%19%WNW8 mph18 mph51%——
Sun 9 PMSlight chance of light rain showers56°56°51°85%19%WNW8 mph17 mph34%——
Sun 10 PM54°54°50°88%13%NW8 mph17 mph41%——
Sun 11 PM52°52°49°90%11%NW8 mph17 mph47%——
Mon 12 AM50°47°47°92%9%NW7 mph16 mph41%——
Mon 1 AM47°44°46°94%7%NW7 mph15 mph34%——
Mon 2 AM45°42°44°95%1%NW6 mph14 mph16%——
Mon 3 AM44°40°43°97%1%NW6 mph14 mph13%——
Mon 4 AM43°39°42°98%1%WNW6 mph14 mph9%——
Mon 5 AM42°38°41°98%1%WNW6 mph14 mph6%——
Mon 6 AM40°36°40°100%1%WNW6 mph14 mph5%——

The next 16 days

NWS grid published Oct 3, 4:24 AM EDT to day 8, the National Blend of Models to day 10, the mean of GFS, ECMWF, ECMWF AI to day 16
  1. TodayOct 363°39°Mostly Sunny2%wind 6 mph · gusts 12 mph
  2. SunOct 469°39°Slight Chance Rain Showers19%wind 12 mph · gusts 22 mph
  3. MonOct 561°34°Sunny9%wind 14 mph · gusts 24 mph
  4. TueOct 663°40°Sunny0%wind 8 mph · gusts 17 mph
  5. WedOct 770°43°Mostly Sunny then Slight Chance Light Rain15%wind 15 mph · gusts 25 mph
  6. ThuOct 869°42°Mostly Sunny5%wind 14 mph · gusts 24 mph
  7. FriOct 967°42°Mostly Sunny5%wind 12 mph · gusts 21 mph
  8. SatOct 1071°51°4%wind 15 mph · gusts 26 mph
  9. SunOct 1174°49°National Blend29%0.03 inwind 15 mph · gusts 25 mph
  10. MonOct 1266°41°National Blend26%0.16 inwind 13 mph · gusts 23 mph
  11. TueOct 13~63°49°Model mean0.07 in
  12. WedOct 14~57°47°Model mean0.05 in
  13. ThuOct 15~62°46°Model mean0.23 in
  14. FriOct 16~57°47°Model mean0.05 in
  15. SatOct 17~51°45°Model mean0.47 in
  16. SunOct 18~45°38°Model mean0.04 in

Right now

NWS grid for this hour · UV from the EPA · air quality from AirNow
  • Feels like38°
  • WindNNW 3 mphgusts 8 mph
  • Radar over this pointno reading
  • Humidity100%
  • Dew point40°
  • Pressure—
  • UV index—
  • Air quality—
  • Visibility—
  • Sunrise and sunsetSunrise · Sunset
  • Moonrise—Moonset 3:34 PM
  • Moon phaseLast quarter54% lit

The National Blend of Models

NOAA NBM v5.0 · run of Oct 3, 2:00 AM EDT

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 363°39°NWS grid 63° / 39°rain 7%wind 6 mph · gusts 12 mph
  2. SunOct 469°39°NWS grid 69° / 39°rain 31%wind 12 mph · gusts 22 mph
  3. MonOct 561°34°NWS grid 61° / 34°rain 0%wind 14 mph · gusts 24 mph
  4. TueOct 663°40°NWS grid 63° / 40°rain 1%wind 8 mph · gusts 17 mph
  5. WedOct 770°43°NWS grid 70° / 43°rain 2%wind 15 mph · gusts 25 mph
  6. ThuOct 869°42°NWS grid 69° / 42°rain 6%wind 13 mph · gusts 23 mph
  7. FriOct 967°42°NWS grid 67° / 42°rain 4%wind 12 mph · gusts 21 mph
  8. SatOct 1071°51°NWS grid 71° / 51°rain 4%wind 15 mph · gusts 26 mph
  9. SunOct 1174°49°Beyond the NWS gridrain 29%0.03 inwind 15 mph · gusts 25 mph
  10. MonOct 1266°41°Beyond the NWS gridrain 26%0.16 inwind 13 mph · gusts 23 mph
  11. TueOct 1361°—Beyond the NWS gridrain 22%0.08 inwind 13 mph · gusts 24 mph
32°55°77°SunMonTueWedThuFriSat

BlendNWS gridChance of rain, hourly

The models, side by side

HRRR Oct 3, 2:00 AM EDT · GFS Oct 3, 2:00 AM EDT · GEFS Oct 2, 8:00 PM EDT · ECMWF Oct 2, 8:00 PM EDT · ECMWF AI Oct 2, 8:00 PM EDT

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°SunMonTueWedThuFriSat

DayNWS gridHRRRGFSGEFSECMWFECMWF AI
Today Oct 363° 39°61° 43°62° 46°61° 46°62° 46°~61° 46°
Sun Oct 469° 39°65° 43°0.01 in69° 46°0.04 in68° 47°0.02 in66° 45°0.12 in~67° 51°0.06 in
Mon Oct 561° 34°~51° 47°59° 44°59° 42°58° 46°~57° 47°
Tue Oct 663° 40°—66° 42°63° 39°61° 40°~63° 42°
Wed Oct 770° 43°—74° 53°72° 53°0.01 in67° 51°~69° 56°0.01 in
Thu Oct 869° 42°—66° 49°69° 49°62° 47°~66° 51°0.02 in
Fri Oct 967° 42°—65° 47°65° 47°~66° 48°~67° 51°
Sat Oct 1071° 51°—71° 52°0.02 in66° 46°~67° 49°~61° 49°0.11 in
Sun Oct 11——85° 59°75° 58°0.04 in~65° 55°~62° 54°0.02 in
Mon Oct 12——72° 64°0.29 in62° 53°0.22 in~57° 51°~58° 54°0.04 in
Tue Oct 13——~61° 48°0.13 in—~73° 50°0.06 in~55° 50°0.04 in
Wed Oct 14——~67° 48°—~52° 44°~53° 49°0.16 in
Thu Oct 15——~55° 42°0.10 in—~68° 41°0.09 in~62° 53°0.50 in
Fri Oct 16——~54° 43°0.13 in—~64° 45°~55° 51°0.02 in
Sat Oct 17——~49° 43°1.36 in—~51° 42°~53° 49°0.04 in
Sun Oct 18——~45° 38°0.04 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 Bad Axe (BAX) · 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 Sun Oct 18, 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%33%equal chances40% chance above normal · Oct to Dec0°20°40°60°80°TodayNov 1Dec 1

Forecast high and lowNormal high and lowRecord high and lowCPC leans warmer than normalCPC near normal or equal chances

Week ofNormalWarmest on recordColdest on recordTemperature leanPrecipitation lean
Oct 362° / 44°90° (1927)22° (1952)equal chances · Oct 2026equal chances · Oct 2026
Oct 1063° / 42°86° (1949)20° (1956)33% chance above normal · days 8 to 14near normal most likely · days 8 to 14
Oct 1757° / 39°86° (1947)19° (1952)equal chances · Oct 2026equal chances · Oct 2026
Oct 2454° / 39°84° (1927)15° (1925)equal chances · Oct 2026equal chances · Oct 2026
Oct 3149° / 35°80° (1950)12° (1951)40% chance above normal · Oct to Dec33% chance below normal · Oct to Dec
Nov 749° / 35°78° (1927)10° (1983)40% chance above normal · Oct to Dec33% chance below normal · Oct to Dec
Nov 1442° / 30°74° (1927)5° (1933)40% chance above normal · Oct to Dec33% chance below normal · Oct to Dec
Nov 2142° / 28°70° (1931)1° (1950)40% chance above normal · Oct to Dec33% chance below normal · Oct to Dec
Nov 2841° / 28°67° (1990)-7° (1958)40% chance above normal · Oct to Dec33% chance below normal · Oct to Dec
Dec 532° / 22°69° (1946)-3° (1958)40% chance above normal · Oct to Dec33% chance below normal · Oct to Dec
Dec 1235° / 25°62° (1975)-5° (1960)40% chance above normal · Oct to Dec33% chance below normal · Oct to Dec
Dec 1933° / 22°60° (1967)-8° (1951)40% chance above normal · Oct to Dec33% chance below normal · Oct to Dec
Dec 2632° / 20°64° (1984)-7° (1976)40% chance above normal · Oct to Dec33% chance below normal · 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 hLowmild
  • SleepingtonightIdealcool, quiet night

Outdoors

  • RunningtodayIdealfine conditions
  • HikingtodayIdealfine conditions
  • BikingtodayIdealfine conditions
  • GolftodayIdealfine conditions
  • FishingtodayIdealfine conditions
  • Boating and paddlingtodayIdealfine conditions
  • Beach and pooltodayGoodcool
  • CampingtonightIdealfine conditions
  • StargazingtonightPoorpartly cloudy

Travel

  • Air travelnext 24 hIdealclear skies
  • Drivingnext 24 hIdealclear roads

Home and garden

  • Lawn mowingtodayIdealfine conditions
  • GardeningtodayIdealfine conditions
  • Outdoor entertainingtodayIdealfine conditions
  • Drying laundry outsidetodayVery goodhumid
  • Painting and outdoor projectstodayVery goodcold
  • FrosttonightLowmild

Pests

  • MosquitoestodayHighwarm
  • TickstodayHighwarm
  • Indoor pestsnext 24 hLowmild
  • Outdoor peststodayModeratehumid

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
SaturdayPoor8:43 PM to 5:57 AM0 of 9None50%9 h2 mph
SundayFair8:42 PM to 5:58 AM4 of 9None39%Poor7 h8 mph
MondayGood8:40 PM to 6:00 AM9 of 96 h from 9:00 PM29%Fair4 h3 mph
TuesdayGood8:38 PM to 6:01 AM5 of 95 h from 9:00 PM20%Fair10 mph
WednesdayGood8:36 PM to 6:02 AM5 of 95 h from 9:00 PM12%Fair3 h7 mph
ThursdayPoor8:35 PM to 6:03 AM0 of 9None6%1 h6 mph
FridayPoor8:33 PM to 6:04 AM0 of 9None2%1 h5 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
Sat7:03 AM to 7:14 AM7:14 AM to 8:09 AM6:31 PM to 7:26 PM7:26 PM to 7:37 PM
Sun7:04 AM to 7:15 AM7:15 AM to 8:10 AM6:29 PM to 7:24 PM7:24 PM to 7:35 PM
Mon7:05 AM to 7:16 AM7:16 AM to 8:12 AM6:27 PM to 7:23 PM7:23 PM to 7:34 PM
Tue7:06 AM to 7:17 AM7:17 AM to 8:13 AM6:25 PM to 7:21 PM7:21 PM to 7:32 PM
Wed7:07 AM to 7:18 AM7:18 AM to 8:14 AM6:23 PM to 7:19 PM7:19 PM to 7:30 PM
Thu7:08 AM to 7:19 AM7:19 AM to 8:15 AM6:21 PM to 7:17 PM7:17 PM to 7:28 PM
Fri7:09 AM to 7:21 AM7:21 AM to 8:17 AM6:20 PM to 7:16 PM7:16 PM to 7:27 PM
NESWSRSSMS
  • SR Sunrise 7:31 AM, 95° E
  • SS Sunset 7:09 PM, 265° W
  • MR Moonrise not on this date
  • MS Moonset 3:34 PM, 308° NW
  • Last quarter, 54% 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 (gusts near or over your limit, night: lighting and night training required (107.29)). Next good stretch: Sat 8 AM to 7 PM, 11 hours.

Today: civil twilight for Part 107 7:01 AM to sunrise 7:31 AM, and sunset 7:09 PM to 7:39 PM. Anti-collision lighting is required in those minutes and at night.

Sat12 PM6 PM
Sun12 AM6 AM12 PM6 PM
Mon12 AM6 AM12 PM6 PM

Good Caution No-fly

HourVerdictWind (mph)400 ft est. (mph)Gust (mph)RainVisibilityCloud allowsTempKpWhy
Sat 7 AMCaution314180%40°gusts near or over your limit, night: lighting and night training required (107.29)
Sat 8 AMGood3480%42°nothing against it
Sat 9 AMGood3490%47°nothing against it
Sat 10 AMGood3490%55°nothing against it
Sat 11 AMGood3490%58°nothing against it
Sat 12 PMGood3480%59°nothing against it
Sat 1 PMGood3480%60°nothing against it
Sat 2 PMGood3480%61°nothing against it
Sat 3 PMGood3490%61°nothing against it
Sat 4 PMGood56110%62°nothing against it
Sat 5 PMGood67120%61°nothing against it
Sat 6 PMGood67130%60°nothing against it
Sat 7 PMCaution518230%57°wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training required (107.29)
Sat 8 PMCaution314181%51°gusts near or over your limit, night: lighting and night training required (107.29)
Sat 9 PMCaution29132%49°night: lighting and night training required (107.29)
Sat 10 PMCaution29132%48°night: lighting and night training required (107.29)
Sat 11 PMCaution29142%47°night: lighting and night training required (107.29)
Sun 12 AMCaution29142%45°night: lighting and night training required (107.29)
Sun 1 AMCaution29142%44°night: lighting and night training required (107.29)
Sun 2 AMCaution26102%43°night: lighting and night training required (107.29)
Sun 3 AMCaution2699%42°night: lighting and night training required (107.29)
Sun 4 AMCaution26916%42°night: lighting and night training required (107.29)
Sun 5 AMCaution13616%40°night: lighting and night training required (107.29)
Sun 6 AMCaution13616%42°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

  • Sat 11 AM to 8 PM 9 hours, every hour within the rules
  • Sun 11 AM to 1 PM 2 hours, every hour within the rules
  • Mon 7 PM to 11 PM 4 hours, every hour within the rules
  • Tue 11 AM to 10 PM 11 hours, every hour within the rules
  • Thu 9 PM to Fri 12 AM 3 hours, every hour within the rules
  • Fri 7 PM to Sat 12 AM 5 hours, every hour within the rules
Sat12 PM6 PM
Sun12 AM6 AM12 PM6 PM
Mon12 AM6 AM12 PM6 PM
Tue12 AM6 AM12 PM6 PM

Good Marginal No

Field days

DayDaytimeChance of rainRainLowest humidityStrongest windDry days in a rowHay drying
SaturdayDry0%0.00 in57%6 mph8 d
SundayDry19%0.00 in58%12 mph7 d
MondayDry0%0.00 in47%14 mph6 dGood
TuesdayDry0%0.00 in42%7 mph5 dGood
WednesdayDry15%0.00 in53%15 mph4 d
ThursdayDry5%0.00 in47%14 mph3 dGood
FridayDry4%0.00 in47%12 mph2 dGood
SaturdayDry2%0.00 in49%15 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 Friday, rated best.

DayRatingMajor periodsMinor periodsMoonSunrise, sunset
Sat Fair6:23 AM to 8:23 AM6:53 PM to 8:53 PM3:04 PM to 4:04 PM 54%7:31 AM, 7:09 PM
Sun Fair7:23 AM to 9:23 AM7:52 PM to 9:52 PM11:48 PM to 12:48 AM3:45 PM to 4:45 PM 43%7:32 AM, 7:07 PM
Mon Fair8:19 AM to 10:19 AM8:45 PM to 10:45 PM1:06 AM to 2:06 AM4:18 PM to 5:18 PM 33%7:33 AM, 7:05 PM
Tue Poor9:11 AM to 11:11 AM9:35 PM to 11:35 PM2:23 AM to 3:23 AM4:44 PM to 5:44 PM 23%7:35 AM, 7:03 PM
Wed Good9:59 AM to 11:59 AM10:23 PM to 12:23 AM3:38 AM to 4:38 AM5:06 PM to 6:06 PM 15%7:36 AM, 7:02 PM
Thu Good10:45 AM to 12:45 PM4:51 AM to 5:51 AM5:27 PM to 6:27 PM 8%7:37 AM, 7:00 PM
Fri Best11:08 PM to 1:08 AM11:30 AM to 1:30 PM6:01 AM to 7:01 AM5:47 PM to 6:47 PM 3%7:38 AM, 6:58 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. Today63° · ENE 6 mph

    Mostly sunny. High near 63, with temperatures falling to around 61 in the afternoon. East northeast wind around 6 mph.

  2. Tonight39° · 16% · SE 1–6 mph

    A slight chance of rain showers after 4am. Partly cloudy, with a low around 39. Southeast wind 1 to 6 mph. Chance of precipitation is 20%.

  3. Sunday69° · 19% · SW 1–12 mph

    A slight chance of rain showers. Partly sunny. High near 69, with temperatures falling to around 67 in the afternoon. Southwest wind 1 to 12 mph, with gusts as high as 22 mph.

  4. Sunday Night39° · 19% · WNW 6–10 mph

    A slight chance of rain showers before 10pm. Partly cloudy, with a low around 39. West northwest wind 6 to 10 mph, with gusts as high as 20 mph.

  5. Monday61° · 1% · NW 6–14 mph

    Sunny, with a high near 61. Northwest wind 6 to 14 mph, with gusts as high as 24 mph.

  6. Monday Night34° · NW 2–10 mph

    Mostly clear, with a low around 34.

  7. Tuesday63° · WSW 1–7 mph

    Sunny, with a high near 63.

  8. Tuesday Night40° · 1% · S 7–10 mph

    Mostly clear, with a low around 40.

  9. Wednesday70° · 15% · SW 10–15 mph

    A slight chance of rain after 2pm. Mostly sunny, with a high near 70.

  10. Wednesday Night43° · 15% · W 5–12 mph

    A slight chance of rain before 8pm. Partly cloudy, with a low around 43.

  11. Thursday69° · 5% · W 5–14 mph

    Mostly sunny, with a high near 69.

  12. Thursday Night42° · 5% · W 5–12 mph

    Partly cloudy, with a low around 42.

  13. Friday67° · 5% · W 6–12 mph

    Mostly sunny, with a high near 67.

  14. Friday Night42° · 3% · W 3–9 mph

    Mostly clear, with a low around 42.

The forecaster’s discussion

NWS Detroit/Pontiac, MI · issued Oct 3, 6:44 AM EDT

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

A pleasant weekend with highs in the low to mid 60s today and around 70 degrees on Sunday. A low chance of showers late tonight into Sunday, mainly north of M-59.

Dry weather continues early next week, with potential for frost early Tuesday morning as temperatures look to drop into the mid 30s.

Aviation

Broad upper level confluence aloft will support surface high pressure throughout the period. A strong signal exists for deep column stability between 3.5 and 13.5 kft agl. Remnant moisture and saturation at the top of the mixed layer from yesterday did sustain some cloud overnight. Have seen that thin out while advecting along anticyclonically this morning. Suspect that some boundary layer cloud development will again occur late this morning and afternoon. Surface winds will emerge out of the southeast today.

D21/DTW Convection... Thunderstorms are not forecast this period.

DTW Threshold Probabilities

Low for ceiling 5000 ft or less today.

Prev Discussion

310 AM EDT Sat Oct 3 2026

DISCUSSION...

Good subsidence and dry mid levels (a 48 C dew pt depression at 700 MB per the 00z RAOB) are in place this morning over southeast Michigan, with expansive high pressure in control of the Great Lakes region. Transient low clouds seen traversing through southeast Michigan, as northerly flow off Lake Huron moistens the low levels. Slow return easterly flow around the departing high on Saturday will likely facilitate at least scattered Cu field, helping to hold temps in the mid 60s, as 925 MB temps progged to reach 11 C.

A shortwave entering the Northern Plains early this morning is on track to move through southeast Michigan 12-16z Sunday. Moisture is lacking, as the 850 MB moisture gradient/theta-e remains along the Ohio River. The front will have a narrowing/weakening moisture axis coming out of the Central Plains/Midwest; however, it remains supportive of low chance/scattered pops. Chances will be highest over northern half of the CWA, closer to the mid level cold pool (- 18 C at 500 MB), with several hires solutions indicating light showers in the 8-15z window with the wave of isentropic ascent. The actual cold front/trough does not move through until late in the day, where local probabilistic guidance also suggests a low chance of showers around Saginaw Bay.

Model guidance (Euro/CMC) trends to close out the weekend into early next week are for a more with amplified northern-stream trough to swing through the Great Lakes region into New England on Monday, with the parent 500 MB closed low over Quebec. This leads to 850 MB temps temps progged to reach 0 to 2 C Monday morning, setting us up for a cold/frost night Monday night with center of high pressure arriving over southeast Michigan around midnight. Warm advection high clouds with the strong warm front over the western Great Lakes looks to be the only potential hindrance to temps falling into the mid 30s.

MARINE...

Transient high pressure passes over the central Great Lakes this morning, promoting light wind and waves that persist into this evening. The high departs to the east tonight, then a low pressure system will track just north of Lake Superior through Sunday. This brings an uptick in southerly flow after midnight with a chance of light showers across Lake Huron through Sunday. Wind then veers to northwest by late in the day as the cold front passes through, with increasing gustiness expected Sunday night. Gusts to around 30 kt will be likely across northern Lake Huron while gusts hold in the 20 to 25 kt range farther south. This post-frontal gustiness continues through the day Monday with model guidance indicating less than a 20% probability for gales across northern Lake Huron. Wind magnitude subsides by Tuesday morning as the next area of high pressure passes through.

DTX Watches / Warnings / Advisories

MI...None. Lake Huron...None. Lake St Clair...None. Michigan waters of Lake Erie...None.

Hazardous weather outlook Oct 3, 3:48 AM EDT

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

FLUS43 KDTX 030748
HWODTX

Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
348 AM EDT Sat Oct 3 2026

MIZ047>049-053>055-060>063-068>070-075-076-082-083-041000-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
348 AM EDT Sat Oct 3 2026

This hazardous weather outlook is for southeast Michigan.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

$$

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-041000-
Lake St Clair-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt
beyond 5 NM off shore-
Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM
off shore-
Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw
Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI-
Port Sanilac to Port Huron MI-
Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore-
Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore-
Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore-
348 AM EDT Sat Oct 3 2026

This hazardous weather outlook is for portions of Lake Erie, Lake
Huron and Lake St Clair.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

$$

You can obtain your latest National Weather Service forecasts online
at www.weather.gov/detroit.

SF

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 · Sat Oct 3No risk area
  2. Day 2 · Sun Oct 4No risk area
  3. Day 3 · Mon Oct 5No risk area
  4. Day 4 · Tue Oct 6No risk area
  5. Day 5 · Wed Oct 7No risk area
  6. Day 6 · Thu Oct 8No risk area
  7. Day 7 · Fri Oct 9No risk area
  8. Day 8 · Sat Oct 10No risk area

Rainfall

  1. Day 1 · Sat Oct 3Under 0.01 in
  2. Day 2 · Sun Oct 40.01 in
  3. Day 3 · Mon Oct 5Under 0.01 in
  4. Day 4-5 · Oct 6–Oct 70.01 in
  5. Day 6-7 · Oct 8–Oct 9Under 0.01 in

The rainfall forecast on the map, days 1 to 7

Six to fourteen days

  1. Days 6–10 · Temperature40% chance above normalOct 8–Oct 12
  2. Days 6–10 · PrecipitationNear normal most likelyOct 8–Oct 12
  3. Days 8–14 · Temperature33% chance above normalOct 10–Oct 16
  4. Days 8–14 · PrecipitationNear normal most likelyOct 10–Oct 16

Drought

  1. Drought Monitor, map of Sep 29D0 Abnormally dry

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

Frost and climate

NOAA 1991-2020 normals, Sandusky

The last spring freeze (32°F) usually comes around May 2 and the first fall freeze around October 16: a growing season of about 165 days.

One fall in ten brings a freeze by October 1; one spring in ten still has one after May 17.

Climate of 43.41, -82.81: normals, records and every month

Everything else on the grid

NWS forecast grid · 25 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.

ElementSatSunMonTueWedThuFriSat
Wet bulb globe temperature max59°63°55°56°64°62°60°64°
Heat index max70°71°
Wind chill min38°40°35°34°39°42°40°42°
Chance of thunder max0%2%0%0%5%5%5%2%
Mixing height max4,300 ft4,400 ft6,900 ft4,300 ft4,700 ft5,600 ft4,400 ft2,900 ft
Transport wind max10 mph16 mph21 mph13 mph20 mph16 mph13 mph15 mph

Against the record

NOAA GHCN · Bad Axe (BAX) · 27 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
Sat Oct 363° / 39°63° / 46°90° (1927)28° (1974)
Sun Oct 469° / 39°64° / 46°88° (1951)30° (1996)
Mon Oct 561° / 34°62° / 43°88° (2025)26° (1965)
Tue Oct 663° / 40°62° / 44°86° (1946)22° (1952)
Wed Oct 770° / 43°65° / 45°87° (2007)22° (1952)
Thu Oct 869° / 42°64° / 44°88° (2007)26° (1952)
Fri Oct 967° / 42°65° / 45°89° (2007)27° (1952)
Sat Oct 1071° / 51°64° / 43°86° (1949)20° (1956)

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Sat7:03 AM7:31 AM7:09 PM7:37 PM11 h 38 min Last quarter · 54% lit
Sun7:04 AM7:32 AM7:07 PM7:35 PM11 h 35 min Last quarter · 43% lit
Mon7:05 AM7:33 AM7:05 PM7:34 PM11 h 32 min Waning crescent · 33% lit
Tue7:06 AM7:35 AM7:03 PM7:32 PM11 h 28 min Waning crescent · 23% lit
Wed7:07 AM7:36 AM7:02 PM7:30 PM11 h 26 min Waning crescent · 15% lit
Thu7:08 AM7:37 AM7:00 PM7:28 PM11 h 23 min Waning crescent · 8% lit
Fri7:09 AM7:38 AM6:58 PM7:27 PM11 h 20 min Waning crescent · 3% lit
Sat7:11 AM7:39 AM6:56 PM7:25 PM11 h 17 min New moon · 1% 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