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St. Clair, MI 48079 Weather

Today: Partly Sunny then Light Rain Likely, high 72°F, low 51°F. Hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

St. Clair, MI 48079 current weather

51°F

Mostly Clear

Forecast for this hour. No recent report from a nearby station.

H 72° / L 51°

No recent station report. NWS hourly forecast updated 10/28/2026, 11:24 PM PT

Hourly forecast

NWS, updated 10/28/2026, 11:24 PM PT

  1. Now51°
  2. 3 AM52°
  3. 4 AM52°
  4. 5 AM52°
  5. 6 AM52°
  6. 7 AM53°
  7. 8 AM53°
  8. 9 AM56°
  9. 10 AM62°
  10. 11 AM65°
  11. 12 PM67°
  12. 1 PM70°
  13. 2 PM70°35%
  14. 3 PM70°58%
  15. 4 PM70°45%
  16. 5 PM68°23%
  17. 6 PM66°
  18. 7 PM64°
  19. 8 PM61°
  20. 9 PM58°
  21. 10 PM56°
  22. 11 PM54°
  23. 12 AM52°Fri
  24. 1 AM49°
  25. 2 AM47°
  26. 3 AM45°
  27. 4 AM43°
  28. 5 AM41°
  29. 6 AM40°
  30. 7 AM39°
  31. 8 AM39°
  32. 9 AM41°
  33. 10 AM48°
  34. 11 AM51°
  35. 12 PM55°
  36. 1 PM56°
  37. 2 PM57°
  38. 3 PM59°
  39. 4 PM58°
  40. 5 PM58°
  41. 6 PM56°
  42. 7 PM52°
  43. 8 PM48°
  44. 9 PM45°
  45. 10 PM44°
  46. 11 PM43°
  47. 12 AM42°Sat
  48. 1 AM41°

10-day forecast

Tap a day for details

  • Today10/2958% chance of precipitationLow 51°High 72°

    Thursday: Rain likely after 2pm. Partly sunny. High near 72, with temperatures falling to around 68 in the afternoon. Southwest wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

    Overnight: Mostly clear, with a low around 51. South southwest wind 3 to 7 mph.

    Partly Sunny then Light Rain Likely
  • Fri10/30Low 35°High 60°

    Friday: Sunny, with a high near 60. North northwest wind around 7 mph.

    Friday Night: Partly cloudy, with a low around 35. North wind 0 to 3 mph.

    Sunny
  • Sat10/31Low 43°High 61°

    Saturday: Partly sunny, with a high near 61.

    Saturday Night: Mostly cloudy, with a low around 43.

    Partly Sunny
  • Sun11/112% chance of precipitationLow 45°High 65°

    Sunday: Mostly cloudy, with a high near 65.

    Sunday Night: Mostly cloudy, with a low around 45.

    Mostly Cloudy
  • Mon11/232% chance of precipitationLow 48°High 66°

    Monday: Partly sunny, with a high near 66.

    Monday Night: A chance of rain after 7pm. Mostly cloudy, with a low around 48.

    Partly Sunny
  • Tue11/342% chance of precipitationLow 50°High 67°

    Tuesday: A chance of rain. Partly sunny, with a high near 67.

    Tuesday Night: A chance of rain. Mostly cloudy, with a low around 50.

    Chance Light Rain
  • Wed11/441% chance of precipitationLow High 65°

    Wednesday: A chance of rain. Mostly cloudy, with a high near 65.

    Chance Light Rain
  • Thu11/5Model blend44% chance of precipitationLow 42°High 61°

    Thursday: Chance of rain. High near 61°. Low that night near 42°. About 0.05 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Fri11/6Model blend24% chance of precipitationLow 38°High 57°

    Friday: Mostly cloudy, slight chance of rain. High near 57°. Low that night near 38°. About 0.01 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sat11/7Model blend17% chance of precipitationLow 37°High 55°

    Saturday: Partly cloudy, slight chance of rain. High near 55°. Low that night near 37°. About 0.02 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 42.855, -82.543 from the NWS DTX office, updated 10/28/2026, 11:24 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station CYZR (Sarnia/Hadfield Arpt, 15 mi), model run 10/28/2026, 10:00 PM EDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now51°Mostly Clear0%3 mph
  2. 3 AM52°Mostly Clear0%5 mph
  3. 4 AM52°Mostly Clear0%6 mph
  4. 5 AM52°Mostly Clear0%7 mph
  5. 6 AM52°Sunny0%7 mph
  6. 7 AM53°Partly Sunny0%8 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the high temperature today in St. Clair, MI 48079?
The National Weather Service forecast for thursday calls for a high near 72°F. Partly Sunny then Light Rain Likely.
Will it rain in St. Clair, MI 48079 in the next 24 hours?
The hourly forecast shows a 58% chance of precipitation around 10/29/2026, 3:00 PM EDT.
What is the 10-day forecast for St. Clair, MI 48079?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 5 to Nov 7) come from the NOAA National Blend of Models, with highs of 55°F to 61°F and up to a 44% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in St. Clair, MI 48079 today?
Sunrise is about 8:01 AM EDT and sunset is about 6:26 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in St. Clair, MI 48079?
At Port Huron, the 1991 to 2020 normal high in October is 61°F and the normal low is 46°F.

Nearby hazards

Michigan hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:General thunderstormsOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: Genesee-01 Zacs Fire (4 acres)

UV and air quality forecast

EPA and AirNow

AQI forecast today (Southeast)
ModeratePM2.5
AQI forecast tomorrow (Southeast)
GoodOzone

UV index guide · Air quality

Drought

By county

St. Clair County, week of 10/20/2026

100% of the county is abnormally dry. No drought.

Beaches nearby

EPA BEACON beaches

Sun and moon

Local time, center of the area

Sunrise
8:01 AM
Sunset
6:26 PM
Daylight
10 hr 26 min
Moon
Waning Gibbous 89% lit
First light (civil dawn)
7:31 AM
Last light (civil dusk)
6:55 PM
Moonrise
8:46 PM
Moonset
12:21 PM

Normal October weather

Climate

Normal October high 61°, low 46°, precipitation 3.13 in for the month. 1991 to 2020 normals at Port Huron, 10 mi away.

Other places nearby

Data sources

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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