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 69%
Wind Speed NE 7 mph
Barometer 30.51 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 7 Apr 8:35 pm EDT
Extended Forecast for

2 Miles S Fort Gratiot MI

  • Tonight

    Tonight: Clear, with a low around 24. Light and variable wind becoming south southeast around 6 mph after midnight.

    Low: 24 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 49. South southeast wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. South wind 11 to 14 mph, with gusts as high as 26 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain between 8am and 2pm. Partly sunny, with a high near 63. South southwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    High: 63 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely after 2am. Increasing clouds, with a low around 38. West wind 5 to 7 mph becoming north northeast after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Mostly Cloudy
    then Rain
    Likely

  • Friday

    Friday: Rain likely before 2pm. Mostly cloudy, with a high near 46. Chance of precipitation is 70%.

    High: 46 °F

    Rain Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 24. Light and variable wind becoming south southeast around 6 mph after midnight.
Wednesday
Mostly sunny, with a high near 49. South southeast wind 6 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 42. South wind 11 to 14 mph, with gusts as high as 26 mph.
Thursday
A chance of rain between 8am and 2pm. Partly sunny, with a high near 63. South southwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Thursday Night
Rain likely after 2am. Increasing clouds, with a low around 38. West wind 5 to 7 mph becoming north northeast after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain likely before 2pm. Mostly cloudy, with a high near 46. Chance of precipitation is 70%.
Friday Night
Mostly cloudy, with a low around 33.
Saturday
Sunny, with a high near 49.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Partly sunny, with a high near 67.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 56.
Monday
A chance of rain. Mostly cloudy, with a high near 72. Breezy.
Monday Night
Rain likely. Mostly cloudy, with a low around 53.
Tuesday
Rain likely. Mostly cloudy, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Fort Gratiot MI
 43.04°N 82.48°W (Elev. 620 ft)
Last Update:
4:24 pm EDT Apr 7, 2026
Forecast Valid:
8pm EDT Apr 7, 2026-6pm EDT Apr 14, 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