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

36°F

2°C

Humidity 41%
Wind Speed NW 10 mph
Barometer 30.23 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 14 Mar 1:15 pm EDT
Extended Forecast for

3 Miles N Fort Gratiot MI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 36. Northwest wind 7 to 9 mph.

    High: 36 °F

    Mostly Sunny

  • Tonight

    Tonight: Snow likely, mainly after 2am. Increasing clouds, with a low around 28. East southeast wind 6 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 28 °F

    Mostly Cloudy
    then Snow
    Likely

  • Sunday

    Sunday: A chance of snow, freezing rain, and sleet before 11am, then a chance of rain between 11am and 2pm. Mostly cloudy, with a high near 56. Breezy, with a south southeast wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    High: 56 °F

    Chance Wintry
    Mix and
    Breezy then
    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 40. Breezy, with a south wind 22 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Breezy.
    Chance Rain
    then Rain
    Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 51. Breezy, with a southwest wind 21 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Rain Likely
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 15. Breezy.

    Low: 15 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 24. Blustery.

    High: 24 °F

    Mostly Cloudy
    and Blustery

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow. Mostly cloudy, with a high near 34.

    High: 34 °F

    Chance Snow

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 36. Northwest wind 7 to 9 mph.
Tonight
Snow likely, mainly after 2am. Increasing clouds, with a low around 28. East southeast wind 6 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Sunday
A chance of snow, freezing rain, and sleet before 11am, then a chance of rain between 11am and 2pm. Mostly cloudy, with a high near 56. Breezy, with a south southeast wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 40. Breezy, with a south wind 22 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 51. Breezy, with a southwest wind 21 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Mostly cloudy, with a low around 15. Breezy.
Tuesday
Mostly cloudy, with a high near 24. Blustery.
Tuesday Night
Mostly cloudy, with a low around 16.
Wednesday
A chance of snow. Mostly cloudy, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Partly sunny, with a high near 45.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Mostly cloudy, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Fort Gratiot MI
 43.12°N 82.5°W (Elev. 600 ft)
Last Update:
1:14 pm EDT Mar 14, 2026
Forecast Valid:
1pm EDT Mar 14, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation