National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Overcast

45°F

7°C

Humidity 76%
Wind Speed N 7 mph
Barometer 29.94 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 10 Mar 3:15 pm EDT
Extended Forecast for

2 Miles S Fort Gratiot MI

  • This Afternoon

    This Afternoon: A slight chance of rain. Mostly cloudy, with a steady temperature around 39. North wind around 9 mph. Chance of precipitation is 20%.

    High: 39 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am. Temperature falling to near 37 by 8pm, then rising to around 47 during the remainder of the night. North northeast wind 5 to 8 mph becoming east southeast after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 37 °F⇑

    Chance
    T-storms then
    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 3pm, then rain likely between 3pm and 5pm. High near 50. South wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 7pm. Mostly cloudy, with a low around 27. West northwest wind around 15 mph. Chance of precipitation is 30%.

    Low: 27 °F

    Chance Rain
    then Mostly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 39. Northwest wind around 10 mph.

    High: 39 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain and snow after 2am. Increasing clouds, with a low around 29. Chance of precipitation is 50%.

    Low: 29 °F

    Partly Cloudy
    then Chance
    Rain/Snow

  • Friday

    Friday: Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 42. Breezy. Chance of precipitation is 70%.

    High: 42 °F

    Breezy. Rain
    Likely then
    Rain/Snow
    Likely

  • Friday Night

    Friday Night: A chance of rain and snow before 8pm. Mostly cloudy, with a low around 25. Breezy.

    Low: 25 °F

    Chance
    Rain/Snow and
    Breezy then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A slight chance of rain. Mostly cloudy, with a steady temperature around 39. North wind around 9 mph. Chance of precipitation is 20%.
Tonight
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am. Temperature falling to near 37 by 8pm, then rising to around 47 during the remainder of the night. North northeast wind 5 to 8 mph becoming east southeast after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Rain and possibly a thunderstorm before 3pm, then rain likely between 3pm and 5pm. High near 50. South wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of rain before 7pm. Mostly cloudy, with a low around 27. West northwest wind around 15 mph. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 39. Northwest wind around 10 mph.
Thursday Night
A chance of rain and snow after 2am. Increasing clouds, with a low around 29. Chance of precipitation is 50%.
Friday
Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 42. Breezy. Chance of precipitation is 70%.
Friday Night
A chance of rain and snow before 8pm. Mostly cloudy, with a low around 25. Breezy.
Saturday
Partly sunny, with a high near 36.
Saturday Night
A chance of snow before 2am, then rain and snow likely. Mostly cloudy, with a low around 29.
Sunday
Rain and snow. Cloudy, with a high near 44.
Sunday Night
Rain and snow. Mostly cloudy, with a low around 21.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 26. Blustery.
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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:
2:24 pm EDT Mar 10, 2026
Forecast Valid:
3pm EDT Mar 10, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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