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

50°F

10°C

Humidity 26%
Wind Speed E 6 mph
Barometer 30.47 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 11 Apr 2:35 pm EDT
Extended Forecast for

2 Miles S Fort Gratiot MI

  • This Afternoon

    This Afternoon: Sunny, with a high near 46. East northeast wind around 6 mph.

    High: 46 °F

    Sunny

  • Tonight

    Tonight: A chance of showers, mainly after 5am. Increasing clouds, with a low around 36. Light and variable wind becoming east southeast around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 36 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly before noon. Mostly cloudy, with a high near 66. South wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 57. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 57 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 70. West southwest wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 70 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers, then showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 56. Chance of precipitation is 70%.

    Low: 56 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm, then showers after 2am. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Showers

  • Wednesday

    Wednesday: Showers, mainly before 8am. Mostly cloudy, with a high near 71.

    High: 71 °F

    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 46. East northeast wind around 6 mph.
Tonight
A chance of showers, mainly after 5am. Increasing clouds, with a low around 36. Light and variable wind becoming east southeast around 5 mph after midnight. Chance of precipitation is 30%.
Sunday
Showers likely, mainly before noon. Mostly cloudy, with a high near 66. South wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 57. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 70. West southwest wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A chance of showers, then showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 56. Chance of precipitation is 70%.
Tuesday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm, then showers after 2am. Mostly cloudy, with a low around 57.
Wednesday
Showers, mainly before 8am. Mostly cloudy, with a high near 71.
Wednesday Night
Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 53.
Thursday
A chance of showers. Mostly cloudy, with a high near 68.
Thursday Night
Mostly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 70.
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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:
2:24 pm EDT Apr 11, 2026
Forecast Valid:
2pm EDT Apr 11, 2026-6pm EDT Apr 17, 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