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.

Light Rain

48°F

9°C

Humidity 100%
Wind Speed NW 7 mph
Barometer 29.65 in
Dewpoint 48°F (9°C)
Visibility 2.00 mi
Wind Chill45°F (7°C)
Last update 22 May 8:15 am EDT
Extended Forecast for

Fort Gratiot MI

  • Today

    Today: Showers likely, mainly before 2pm. Patchy fog before 2pm. Otherwise, cloudy, with a high near 50. North northwest wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Showers
    Likely and
    Patchy Fog

  • Tonight

    Tonight: Scattered showers before 8pm. Cloudy, with a low around 44. North northwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 44 °F

    Scattered
    Showers then
    Cloudy

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 52. West northwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    High: 52 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 43. West northwest wind 7 to 9 mph.

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 57. West northwest wind around 10 mph.

    High: 57 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

Detailed Forecast

Today
Showers likely, mainly before 2pm. Patchy fog before 2pm. Otherwise, cloudy, with a high near 50. North northwest wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Scattered showers before 8pm. Cloudy, with a low around 44. North northwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly cloudy, with a high near 52. West northwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Friday Night
Mostly cloudy, with a low around 43. West northwest wind 7 to 9 mph.
Saturday
Partly sunny, with a high near 57. West northwest wind around 10 mph.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 44.
Memorial Day
Partly sunny, with a high near 62.
Monday Night
Mostly cloudy, with a low around 49.
Tuesday
A chance of showers. Mostly cloudy, with a high near 62.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 50.
Wednesday
A chance of showers. Partly sunny, with a high near 62.
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Forecast Area
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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 May 22, 2025
Forecast Valid:
8am EDT May 22, 2025-6pm EDT May 28, 2025
 
Forecast Discussion
 
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Additional Resources

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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