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Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Overcast

30°F

-1°C

Humidity 69%
Wind Speed SW 7 G 18 mph
Barometer 30.08 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 12 Jan 11:55 am EST
Extended Forecast for

3 Miles N Fort Gratiot MI

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 36. West southwest wind around 13 mph, with gusts as high as 25 mph.

    High: 36 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 28. West southwest wind 8 to 10 mph.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain after 1pm.  Mostly cloudy, with a high near 39. Breezy, with a south southwest wind 11 to 18 mph, with gusts as high as 26 mph.  Chance of precipitation is 50%.

    High: 39 °F

    Mostly Cloudy
    then Chance
    Rain and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am.  Mostly cloudy, with a low around 30. West southwest wind 10 to 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 30%.

    Low: 30 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain and snow likely, becoming all snow after 1pm.  Mostly cloudy, with a high near 35. Breezy, with a west wind 10 to 18 mph becoming north in the afternoon. Winds could gust as high as 26 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Rain/Snow
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of snow.  Mostly cloudy, with a low around 16. Blustery.  Chance of precipitation is 50%.

    Low: 16 °F

    Chance Snow
    and Blustery

  • Thursday

    Thursday: Mostly cloudy, with a high near 22. Blustery.

    High: 22 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of snow.  Mostly cloudy, with a high near 27.

    High: 27 °F

    Chance Snow

Detailed Forecast

This Afternoon
Partly sunny, with a high near 36. West southwest wind around 13 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 28. West southwest wind 8 to 10 mph.
Tuesday
A chance of rain after 1pm. Mostly cloudy, with a high near 39. Breezy, with a south southwest wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 30. West southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Wednesday
Rain and snow likely, becoming all snow after 1pm. Mostly cloudy, with a high near 35. Breezy, with a west wind 10 to 18 mph becoming north in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 16. Blustery. Chance of precipitation is 50%.
Thursday
Mostly cloudy, with a high near 22. Blustery.
Thursday Night
Mostly cloudy, with a low around 15.
Friday
A chance of snow. Mostly cloudy, with a high near 27.
Friday Night
A chance of snow. Mostly cloudy, with a low around 22.
Saturday
A chance of snow. Mostly cloudy, with a high near 29.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 13.
Sunday
Mostly cloudy, with a high near 20.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Fort Gratiot MI
 43.12°N 82.5°W (Elev. 600 ft)
11:25 am EST Jan 12, 2026
12pm EST Jan 12, 2026-6pm EST Jan 18, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database