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.

Overcast

32°F

0°C

Humidity 64%
Wind Speed NW 9 mph
Barometer 30.21 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 26 Mar 11:35 am EDT
Extended Forecast for

Fort Gratiot MI

  • Today

    Today: Mostly sunny, with a high near 39. North northwest wind around 11 mph.

    High: 39 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 28. East northeast wind around 5 mph becoming calm.

    Low: 28 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 53. West wind 9 to 16 mph, with gusts as high as 24 mph.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. West wind 5 to 7 mph becoming east northeast after midnight.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Rain likely, mainly after 2pm. Mostly cloudy, with a high near 56. South southeast wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Chance Rain
    then Rain
    Likely

  • Friday Night

    Friday Night: Rain likely, mainly before 8pm. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Rain Likely

  • Saturday

    Saturday: Rain likely, mainly after 2pm. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.

    High: 64 °F

    Rain Likely

  • Saturday Night

    Saturday Night: Rain. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Rain

  • Sunday

    Sunday: Rain likely. Mostly cloudy, with a high near 53.

    High: 53 °F

    Rain Likely

Detailed Forecast

Today
Mostly sunny, with a high near 39. North northwest wind around 11 mph.
Tonight
Mostly clear, with a low around 28. East northeast wind around 5 mph becoming calm.
Thursday
Mostly sunny, with a high near 53. West wind 9 to 16 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 32. West wind 5 to 7 mph becoming east northeast after midnight.
Friday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 56. South southeast wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain likely, mainly before 8pm. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Saturday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.
Saturday Night
Rain. Mostly cloudy, with a low around 40.
Sunday
Rain likely. Mostly cloudy, with a high near 53.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 32.
Monday
Rain and snow likely. Mostly cloudy, with a high near 40.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Gratiot MI
 43.08°N 82.5°W (Elev. 623 ft)
Last Update:
4:24 am EDT Mar 26, 2025
Forecast Valid:
11am EDT Mar 26, 2025-6pm EDT Apr 1, 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