Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Fair

41°F

5°C

Humidity 53%
Wind Speed S 9 mph
Barometer 30.22 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 8 Apr 10:35 pm EDT
Extended Forecast for

2 Miles S Fort Gratiot MI

  • Tonight

    Tonight: Partly cloudy, with a temperature rising to around 45 by 5am. South wind around 13 mph, with gusts as high as 22 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain, mainly before 1pm.  Mostly cloudy, then gradually becoming sunny, with a high near 64. Southwest wind around 15 mph, with gusts as high as 26 mph.  Chance of precipitation is 50%.

    High: 64 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely after 2am.  Increasing clouds, with a low around 38. West wind 5 to 7 mph becoming northeast after midnight.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Partly Cloudy
    then Rain
    Likely

  • Friday

    Friday: Rain, mainly before 2pm.  High near 45. Northeast wind 5 to 7 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain before 8pm.  Mostly cloudy, with a low around 32. North wind 3 to 6 mph.  Chance of precipitation is 30%.

    Low: 32 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of rain before 2pm.  Mostly cloudy, with a high near 66.

    High: 66 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain after 2am.  Cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Partly cloudy, with a temperature rising to around 45 by 5am. South wind around 13 mph, with gusts as high as 22 mph.
Thursday
A chance of rain, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 64. Southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Thursday Night
Rain likely after 2am. Increasing clouds, with a low around 38. West wind 5 to 7 mph becoming northeast after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain, mainly before 2pm. High near 45. Northeast wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A chance of rain before 8pm. Mostly cloudy, with a low around 32. North wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
A chance of rain before 2pm. Mostly cloudy, with a high near 66.
Sunday Night
A chance of rain after 2am. Cloudy, with a low around 57.
Monday
A chance of rain. Mostly cloudy, with a high near 72.
Monday Night
Rain likely. Mostly cloudy, with a low around 53.
Tuesday
Rain likely. Mostly cloudy, with a high near 66.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 43.
Wednesday
A chance of rain. Mostly cloudy, with a high near 53.
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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 Apr 8, 2026
10pm EDT Apr 8, 2026-6pm EDT Apr 15, 2026
 
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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