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

25°C

77°F

Humidity 83%
Wind Speed S 7 km/h
Barometer 29.89 in
Dewpoint 22°C (72°F)
Visibility 16 km
Heat Index26°C (78°F)
Last update 12 Jul 9:15 pm EDT
Extended Forecast for

Port Huron MI

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 21. Southwest wind 5 to 11 km/h. Chance of precipitation is 30%.

    Low: 21 °C

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 29. West wind 8 to 11 km/h.

    High: 29 °C

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 17. Calm wind.

    Low: 17 °C

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 30. West southwest wind 5 to 10 km/h.

    High: 30 °C

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19. Calm wind.

    Low: 19 °C

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 31.

    High: 31 °C

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 21.

    Low: 21 °C

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 29.

    High: 29 °C

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 21.

    Low: 21 °C

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 21. Southwest wind 5 to 11 km/h. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 29. West wind 8 to 11 km/h.
Sunday Night
Partly cloudy, with a low around 17. Calm wind.
Monday
Sunny, with a high near 30. West southwest wind 5 to 10 km/h.
Monday Night
Mostly clear, with a low around 19. Calm wind.
Tuesday
Mostly sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 29.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 21.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 28.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 26.
Friday Night
Partly cloudy, with a low around 17.
Saturday
Mostly sunny, with a high near 27.
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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:
5:24 pm EDT Jul 12, 2025
Forecast Valid:
9pm EDT Jul 12, 2025-6pm EDT Jul 19, 2025
 
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