Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Overcast

25°F

-4°C

Humidity 39%
Wind Speed W 7 mph
Barometer 30.10 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 17 Mar 5:55 pm EDT
Extended Forecast for

2 Miles S Fort Gratiot MI

  • Tonight

    Tonight: A slight chance of snow showers before 11pm.  Mostly cloudy, with a low around 18. West wind 5 to 8 mph, with gusts as high as 24 mph.  Chance of precipitation is 20%.

    Low: 18 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A slight chance of snow showers after 9am.  Mostly cloudy, with a high near 35. South wind 6 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 20%.

    High: 35 °F

    Slight Chance
    Snow Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a steady temperature around 34. South southwest wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain after 8am.  Mostly cloudy, with a high near 42. South southwest wind around 7 mph.  Chance of precipitation is 50%.

    High: 42 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. North northwest wind 3 to 5 mph.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain after 2pm.  Mostly cloudy, with a high near 45. Chance of precipitation is 30%.

    High: 45 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain before 8pm.  Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of snow showers before 11pm. Mostly cloudy, with a low around 18. West wind 5 to 8 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of snow showers after 9am. Mostly cloudy, with a high near 35. South wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a steady temperature around 34. South southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Thursday
A chance of rain after 8am. Mostly cloudy, with a high near 42. South southwest wind around 7 mph. Chance of precipitation is 50%.
Thursday Night
Mostly cloudy, with a low around 32. North northwest wind 3 to 5 mph.
Friday
A chance of rain after 2pm. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.
Friday Night
A chance of rain before 8pm. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
A chance of rain between 8am and 2pm. Partly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Mostly sunny, with a high near 35.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Partly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Fort Gratiot MI
 43.04°N 82.48°W (Elev. 620 ft)
4:24 pm EDT Mar 17, 2026
6pm EDT Mar 17, 2026-6pm EDT Mar 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database