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

19°F

-7°C

Humidity 63%
Wind Speed S 8 mph
Barometer 30.00 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 24 Feb 10:55 am EST
Extended Forecast for

Saint Clair MI

  • Today

    Today: Partly sunny, with a high near 32. South wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 32 °F

    Partly Sunny

  • Tonight

    Tonight: Snow, mainly before midnight. Low around 27. South wind 8 to 14 mph becoming west southwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Snow then
    Slight Chance
    Snow

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 34. West wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 34 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 14. West wind 5 to 9 mph becoming calm after midnight.

    Low: 14 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 30. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 21 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 32. South wind 7 to 14 mph, with gusts as high as 23 mph.
Tonight
Snow, mainly before midnight. Low around 27. South wind 8 to 14 mph becoming west southwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday
Mostly cloudy, with a high near 34. West wind 8 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 14. West wind 5 to 9 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 30. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Sunny, with a high near 43.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Partly sunny, with a high near 40.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 19.
Sunday
Partly sunny, with a high near 25.
Sunday Night
Mostly cloudy, with a low around 14.
Monday
Mostly sunny, with a high near 26.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Clair MI
 42.82°N 82.48°W (Elev. 577 ft)
Last Update:
10:49 am EST Feb 24, 2026
Forecast Valid:
11am EST Feb 24, 2026-6pm EST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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