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

32°F

0°C

Humidity 64%
Wind Speed N 6 mph
Barometer 30.35 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 23 Mar 5:35 pm EDT
Extended Forecast for

2 Miles S Fort Gratiot MI

  • This Afternoon

    This Afternoon: Scattered snow showers. Mostly cloudy, with a steady temperature around 32. North wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 32 °F

    Scattered
    Snow Showers

  • Tonight

    Tonight: Scattered snow showers, mainly before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 23. North wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 23 °F

    Scattered
    Snow Showers
    then Mostly
    Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 45. Southwest wind 5 to 10 mph.

    High: 45 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30. South wind 3 to 5 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 51. South wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 51 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain after 2pm. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.

    High: 60 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain before 2am. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Rain

  • Friday

    Friday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Scattered snow showers. Mostly cloudy, with a steady temperature around 32. North wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Tonight
Scattered snow showers, mainly before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 23. North wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 30%.
Tuesday
Increasing clouds, with a high near 45. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 30. South wind 3 to 5 mph.
Wednesday
Mostly cloudy, with a high near 51. South wind 6 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
A chance of rain after 2pm. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.
Thursday Night
A chance of rain before 2am. Mostly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 22.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 51.
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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:
4:24 pm EDT Mar 23, 2026
Forecast Valid:
5pm EDT Mar 23, 2026-6pm EDT Mar 30, 2026
 
Forecast Discussion
 
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Additional Resources

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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