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

27°F

-3°C

Humidity 64%
Wind Speed W 5 mph
Barometer 30.35 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 30 Nov 11:55 pm EST
Extended Forecast for

3 Miles SE Fort Gratiot MI

  • Overnight

    Overnight: Mostly clear, with a low around 17. West northwest wind 8 to 13 mph, with gusts as high as 25 mph.

    Low: 17 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 30. West wind around 7 mph becoming south southwest in the afternoon.

    High: 30 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Snow. Steady temperature around 27. South wind around 6 mph becoming west after midnight. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Snow

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32. West northwest wind 5 to 8 mph.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 21. Southwest wind 6 to 10 mph.

    Low: 21 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 32.

    High: 32 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 1am. Cloudy, with a low around 18. Chance of precipitation is 60%.

    Low: 18 °F

    Snow Likely

  • Thursday

    Thursday: Partly sunny, with a high near 23.

    High: 23 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 17. West northwest wind 8 to 13 mph, with gusts as high as 25 mph.
Monday
Increasing clouds, with a high near 30. West wind around 7 mph becoming south southwest in the afternoon.
Monday Night
Snow. Steady temperature around 27. South wind around 6 mph becoming west after midnight. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday
Mostly sunny, with a high near 32. West northwest wind 5 to 8 mph.
Tuesday Night
Mostly cloudy, with a low around 21. Southwest wind 6 to 10 mph.
Wednesday
Cloudy, with a high near 32.
Wednesday Night
Snow likely, mainly before 1am. Cloudy, with a low around 18. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 23.
Thursday Night
Partly cloudy, with a low around 12.
Friday
Partly sunny, with a high near 26.
Friday Night
A chance of snow. Mostly cloudy, with a low around 20.
Saturday
A chance of snow. Mostly cloudy, with a high near 31.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 22.
Sunday
A chance of snow. Mostly cloudy, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Fort Gratiot MI
 43.03°N 82.45°W (Elev. 597 ft)
Last Update:
10:13 pm EST Nov 30, 2025
Forecast Valid:
12am EST Dec 1, 2025-6pm EST Dec 7, 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