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

25°F

-4°C

Humidity 54%
Wind Speed N 7 G 18 mph
Barometer 30.36 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 7 Apr 5:15 am EDT
Extended Forecast for

2 Miles S Fort Gratiot MI

  • Overnight

    Overnight: A chance of flurries. Mostly cloudy, with a low around 23. North northwest wind around 15 mph, with gusts as high as 26 mph.

    Low: 23 °F

    Chance
    Flurries

  • Tuesday

    Tuesday: A chance of flurries before 11am. Mostly sunny, with a high near 32. North northwest wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 32 °F

    Chance
    Flurries

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. Light and variable wind becoming south southeast around 6 mph in the evening.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 49. South wind 7 to 15 mph, with gusts as high as 23 mph.

    High: 49 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. South wind around 15 mph, with gusts as high as 26 mph.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain between 8am and 2pm. Partly sunny, with a high near 64. Chance of precipitation is 40%.

    High: 64 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.

    Low: 42 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 52.

    High: 52 °F

    Rain Likely

  • Friday Night

    Friday Night: A chance of rain before 8pm. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Overnight
A chance of flurries. Mostly cloudy, with a low around 23. North northwest wind around 15 mph, with gusts as high as 26 mph.
Tuesday
A chance of flurries before 11am. Mostly sunny, with a high near 32. North northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 23. Light and variable wind becoming south southeast around 6 mph in the evening.
Wednesday
Sunny, with a high near 49. South wind 7 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 41. South wind around 15 mph, with gusts as high as 26 mph.
Thursday
A chance of rain between 8am and 2pm. Partly sunny, with a high near 64. Chance of precipitation is 40%.
Thursday Night
A chance of rain after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.
Friday
Rain likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 52.
Friday Night
A chance of rain before 8pm. Mostly cloudy, with a low around 34.
Saturday
Sunny, with a high near 50.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
A chance of rain. Partly sunny, with a high near 68.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 56.
Monday
A chance of rain. Mostly cloudy, with a high near 71.
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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 am EDT Apr 7, 2026
Forecast Valid:
5am EDT Apr 7, 2026-6pm EDT Apr 13, 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