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.

Partly Cloudy

77°F

25°C

Humidity 79%
Wind Speed NW 3 mph
Barometer 29.99 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 13 Jul 10:15 am EDT
Extended Forecast for

Fort Gratiot MI

  • Today

    Today: A chance of showers, mainly before 11am. Partly sunny, with a high near 83. West wind around 7 mph. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Light and variable wind becoming west around 5 mph after midnight.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 83. West northwest wind around 5 mph.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. Light south southwest wind.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 50%.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80.

    High: 80 °F

    Showers
    Likely

Detailed Forecast

Today
A chance of showers, mainly before 11am. Partly sunny, with a high near 83. West wind around 7 mph. Chance of precipitation is 30%.
Tonight
Partly cloudy, with a low around 64. Light and variable wind becoming west around 5 mph after midnight.
Monday
Sunny, with a high near 83. West northwest wind around 5 mph.
Monday Night
Mostly clear, with a low around 65. Light south southwest wind.
Tuesday
Sunny, with a high near 86. Calm wind becoming south southeast around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Thursday
Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Gratiot MI
 43.08°N 82.5°W (Elev. 623 ft)
Last Update:
5:13 am EDT Jul 13, 2025
Forecast Valid:
10am EDT Jul 13, 2025-6pm EDT Jul 19, 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