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.

Fair

28°F

-2°C

Humidity 86%
Wind Speed Calm
Barometer 30.25 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 25 Mar 6:35 am EDT
Extended Forecast for

3 Miles WNW Port Huron MI

  • Today

    Today: Mostly cloudy, with a high near 50. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

    High: 50 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Southwest wind around 8 mph.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers likely after 2pm. Partly sunny, with a high near 60. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Mostly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Rain showers likely, possibly mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 26. North wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 26 °F

    Rain/Snow
    Likely

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 31. North wind around 13 mph, with gusts as high as 23 mph.

    High: 31 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 50. Light south wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Tonight
Mostly cloudy, with a low around 43. Southwest wind around 8 mph.
Thursday
Showers likely after 2pm. Partly sunny, with a high near 60. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain showers likely, possibly mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 26. North wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 31. North wind around 13 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 22.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 51.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 60.
Monday Night
A chance of rain. Mostly cloudy, with a low around 42.
Tuesday
A chance of rain. Mostly cloudy, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Port Huron MI
 42.99°N 82.49°W (Elev. 627 ft)
Last Update:
4:24 am EDT Mar 25, 2026
Forecast Valid:
6am EDT Mar 25, 2026-6pm EDT Mar 31, 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