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.

Overcast

43°F

6°C

Humidity 71%
Wind Speed N 10 mph
Barometer 30.22 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 3 Apr 9:35 pm EDT
Extended Forecast for

2 Miles S Fort Gratiot MI

  • Tonight

    Tonight: A slight chance of rain between 4am and 5am, then a chance of rain and thunderstorms after 5am. Mostly cloudy, with a low around 37. North northeast wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: Rain and thunderstorms likely, then rain and possibly a thunderstorm after 2pm. High near 63. East southeast wind 9 to 14 mph becoming south in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 63 °F

    Rain

  • Saturday Night

    Saturday Night: Rain and possibly a thunderstorm before 8pm, then a chance of rain between 8pm and 2am. Low around 37. West wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 37 °F

    Rain then
    Chance Rain

  • Sunday

    Sunday: Mostly cloudy, with a high near 43. West wind 13 to 17 mph, with gusts as high as 28 mph.

    High: 43 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 30. West wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of rain after 2pm. Partly sunny, with a high near 44. Chance of precipitation is 40%.

    High: 44 °F

    Partly Sunny
    then Chance
    Rain

  • Monday Night

    Monday Night: A chance of rain and snow before 11pm, then a chance of snow between 11pm and 2am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.

    Low: 25 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of rain between 4am and 5am, then a chance of rain and thunderstorms after 5am. Mostly cloudy, with a low around 37. North northeast wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Saturday
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 2pm. High near 63. East southeast wind 9 to 14 mph becoming south in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Rain and possibly a thunderstorm before 8pm, then a chance of rain between 8pm and 2am. Low around 37. West wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly cloudy, with a high near 43. West wind 13 to 17 mph, with gusts as high as 28 mph.
Sunday Night
Mostly cloudy, with a low around 30. West wind 6 to 10 mph, with gusts as high as 20 mph.
Monday
A chance of rain after 2pm. Partly sunny, with a high near 44. Chance of precipitation is 40%.
Monday Night
A chance of rain and snow before 11pm, then a chance of snow between 11pm and 2am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 35.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Partly sunny, with a high near 52.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 44.
Thursday
A chance of rain. Partly sunny, with a high near 61.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 40.
Friday
A chance of rain. Mostly cloudy, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Fort Gratiot MI
 43.04°N 82.48°W (Elev. 620 ft)
Last Update:
8:35 pm EDT Apr 3, 2026
Forecast Valid:
9pm EDT Apr 3, 2026-6pm EDT Apr 10, 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