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.

Mostly Cloudy

37°F

3°C

Humidity 60%
Wind Speed E 3 mph
Barometer 30.17 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 3 Mar 12:16 pm EST
Extended Forecast for

Port Huron MI

  • This Afternoon

    This Afternoon: A slight chance of drizzle before 4pm. Mostly cloudy, with a high near 38. East southeast wind around 5 mph becoming calm.

    High: 38 °F

    Slight Chance
    Drizzle

  • Tonight

    Tonight: Mostly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. Light and variable wind.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Rain, mainly after 1pm. High near 44. East wind 3 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Chance Rain
    then Rain

  • Thursday Night

    Thursday Night: A chance of rain before 1am. Cloudy, with a low around 38. Chance of precipitation is 50%.

    Low: 38 °F

    Chance Rain

  • Friday

    Friday: A chance of rain after 1pm. Mostly cloudy, with a high near 55. Chance of precipitation is 30%.

    High: 55 °F

    Cloudy then
    Chance Rain

  • Friday Night

    Friday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Rain Likely

  • Saturday

    Saturday: Rain, mainly before 1pm. Mostly cloudy, with a high near 62.

    High: 62 °F

    Rain

Detailed Forecast

This Afternoon
A slight chance of drizzle before 4pm. Mostly cloudy, with a high near 38. East southeast wind around 5 mph becoming calm.
Tonight
Mostly cloudy, with a low around 26. Calm wind.
Wednesday
Mostly sunny, with a high near 47. Light and variable wind.
Wednesday Night
Mostly cloudy, with a low around 32. Calm wind.
Thursday
Rain, mainly after 1pm. High near 44. East wind 3 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A chance of rain before 1am. Cloudy, with a low around 38. Chance of precipitation is 50%.
Friday
A chance of rain after 1pm. Mostly cloudy, with a high near 55. Chance of precipitation is 30%.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 48.
Saturday
Rain, mainly before 1pm. Mostly cloudy, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 57.
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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:
10:35 am EST Mar 3, 2026
Forecast Valid:
12pm EST Mar 3, 2026-6pm EDT Mar 9, 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