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

64°F

18°C

Humidity 94%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 16 Jun 10:55 pm EDT
Extended Forecast for

2 Miles N Fort Gratiot MI

  • Tonight

    Tonight: Partly cloudy, with a low around 61. South wind 3 to 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 82. South wind 6 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    High: 82 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, mainly between 11pm and 2am. Mostly cloudy, with a low around 64. Southwest wind 5 to 8 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 76. North northwest wind 6 to 10 mph becoming south southwest in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Chance
    T-storms then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 63. South wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 63 °F

    Showers

  • Juneteenth

    Juneteenth: A chance of showers before 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 75. Chance of precipitation is 30%.

    High: 75 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. South wind 3 to 5 mph.
Tuesday
A chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 82. South wind 6 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms, mainly between 11pm and 2am. Mostly cloudy, with a low around 64. Southwest wind 5 to 8 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 76. North northwest wind 6 to 10 mph becoming south southwest in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 63. South wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Juneteenth
A chance of showers before 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 75. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 74.
Friday Night
A chance of showers after 2am. Mostly cloudy, with a low around 62.
Saturday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 82.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Fort Gratiot MI
 43.1°N 82.5°W (Elev. 614 ft)
Last Update:
4:24 pm EDT Jun 16, 2025
Forecast Valid:
11pm EDT Jun 16, 2025-6pm EDT Jun 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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