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

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Overcast

25°F

-4°C

Humidity 54%
Wind Speed N 3 mph
Barometer 30.50 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 1 Mar 1:16 pm EST
Extended Forecast for

Port Huron MI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 23. North wind around 7 mph.

    High: 23 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 12. North northeast wind around 5 mph becoming calm in the evening.

    Low: 12 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 32. South southeast wind 3 to 8 mph.

    High: 32 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 22. South southeast wind around 5 mph becoming calm after midnight.

    Low: 22 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Freezing rain likely before 10am, then rain likely. Mostly cloudy, with a high near 39. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 70%. New ice accumulation of less than a 0.1 of an inch possible.

    High: 39 °F

    Rain/Freezing
    Rain Likely
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.

    Low: 31 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain after 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.

    High: 44 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 23. North wind around 7 mph.
Tonight
Partly cloudy, with a low around 12. North northeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 32. South southeast wind 3 to 8 mph.
Monday Night
Increasing clouds, with a low around 22. South southeast wind around 5 mph becoming calm after midnight.
Tuesday
Freezing rain likely before 10am, then rain likely. Mostly cloudy, with a high near 39. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 70%. New ice accumulation of less than a 0.1 of an inch possible.
Tuesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Wednesday
A chance of rain after 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 37.
Thursday
A chance of rain. Mostly cloudy, with a high near 48.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 38.
Friday
A chance of rain. Mostly cloudy, with a high near 57.
Friday Night
A chance of rain. Mostly cloudy, with a low around 44.
Saturday
Rain likely. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Huron MI
 42.97°N 82.43°W (Elev. 600 ft)
Last Update:
9:14 am EST Mar 1, 2026
Forecast Valid:
1pm EST Mar 1, 2026-6pm EST Mar 7, 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