Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Fair

73°F

23°C

Humidity 47%
Wind Speed NE 9 mph
Barometer 30.22 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 11 Sep 4:55 pm EDT
Extended Forecast for

3 Miles S Fort Gratiot MI

  • Tonight

    Tonight: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 53. North northeast wind 5 to 8 mph.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 76. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57. Light and variable wind becoming south around 5 mph after midnight.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 79. West wind 5 to 7 mph.

    High: 79 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. Light south southeast wind.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 53. North northeast wind 5 to 8 mph.
Friday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 76. Calm wind becoming east northeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 57. Light and variable wind becoming south around 5 mph after midnight.
Saturday
Partly sunny, with a high near 79. West wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 58. Light south southeast wind.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Fort Gratiot MI
 43.04°N 82.48°W (Elev. 620 ft)
4:24 pm EDT Sep 11, 2025
5pm EDT Sep 11, 2025-6pm EDT Sep 18, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database