National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Fair

24°C

75°F

Humidity 74%
Wind Speed S 6 km/h
Barometer 29.85 in
Dewpoint 19°C (66°F)
Visibility 16 km
Last update 12 Sep 7:16 pm EDT
Extended Forecast for

Port Huron MI

  • Tonight

    Tonight: Mostly cloudy, with a low around 18. South southwest wind 5 to 11 km/h becoming northwest after midnight.

    Low: 18 °C

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers after 5pm. Mostly sunny, with a high near 25. North wind 5 to 13 km/h. Chance of precipitation is 10%.

    High: 25 °C

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 12. North northwest wind 11 to 16 km/h, with gusts as high as 34 km/h. Chance of precipitation is 30%.

    Low: 12 °C

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 19. North northwest wind around 11 km/h.

    High: 19 °C

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 13. South southeast wind 5 to 11 km/h.

    Low: 13 °C

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers. Mostly cloudy, with a high near 26. Chance of precipitation is 40%.

    High: 26 °C

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.

    Low: 18 °C

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers. Partly sunny, with a high near 23.

    High: 23 °C

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 17.

    Low: 17 °C

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 18. South southwest wind 5 to 11 km/h becoming northwest after midnight.
Sunday
A slight chance of showers after 5pm. Mostly sunny, with a high near 25. North wind 5 to 13 km/h. Chance of precipitation is 10%.
Sunday Night
A chance of showers before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 12. North northwest wind 11 to 16 km/h, with gusts as high as 34 km/h. Chance of precipitation is 30%.
Monday
Sunny, with a high near 19. North northwest wind around 11 km/h.
Monday Night
Mostly cloudy, with a low around 13. South southeast wind 5 to 11 km/h.
Tuesday
A chance of showers. Mostly cloudy, with a high near 26. Chance of precipitation is 40%.
Tuesday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.
Wednesday
A chance of showers. Partly sunny, with a high near 23.
Wednesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 17.
Thursday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 24.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 15.
Friday
Mostly sunny, with a high near 22.
Friday Night
A chance of showers. Partly cloudy, with a low around 13.
Saturday
A chance of showers. Partly sunny, with a high near 22.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Huron MI
 42.97°N 82.43°W (Elev. 600 m)
Last Update:
4:24 pm EDT Sep 12, 2026
Forecast Valid:
7pm EDT Sep 12, 2026-6pm EDT Sep 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation