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.

Overcast

28°F

-2°C

Humidity 86%
Wind Speed Calm
Barometer 30.21 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 10 Jan 1:15 am EST
Extended Forecast for

2 Miles S Fort Gratiot MI

  • Overnight

    Overnight: Mostly cloudy, with a low around 29. Light and variable wind.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: Snow before 3pm, then rain and snow. High near 38. East southeast wind 5 to 7 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 38 °F

    Mostly Cloudy
    then
    Rain/Snow

  • Saturday Night

    Saturday Night: Rain, possibly mixed with snow before 8pm, then a chance of snow. Low around 25. West southwest wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Rain/Snow
    then Chance
    Snow

  • Sunday

    Sunday: A chance of snow before 1pm. Partly sunny, with a high near 31. Blustery, with a northwest wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

    High: 31 °F

    Chance Snow
    and Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 24. West northwest wind 8 to 11 mph, with gusts as high as 24 mph.

    Low: 24 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain after 1pm. Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain. Cloudy, with a low around 28.

    Low: 28 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 29. Light and variable wind.
Saturday
Snow before 3pm, then rain and snow. High near 38. East southeast wind 5 to 7 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Saturday Night
Rain, possibly mixed with snow before 8pm, then a chance of snow. Low around 25. West southwest wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Sunday
A chance of snow before 1pm. Partly sunny, with a high near 31. Blustery, with a northwest wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 24. West northwest wind 8 to 11 mph, with gusts as high as 24 mph.
Monday
Partly sunny, with a high near 35.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
A chance of rain after 1pm. Mostly cloudy, with a high near 40.
Tuesday Night
A chance of rain. Cloudy, with a low around 28.
Wednesday
A chance of rain and snow before 1pm, then a chance of snow. Mostly cloudy, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 16.
Thursday
Mostly cloudy, with a high near 23.
Thursday Night
Mostly cloudy, with a low around 16.
Friday
A chance of snow. Mostly cloudy, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Fort Gratiot MI
 43.04°N 82.48°W (Elev. 620 ft)
Last Update:
9:36 pm EST Jan 9, 2026
Forecast Valid:
1am EST Jan 10, 2026-6pm EST Jan 16, 2026
 
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