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.

Fair

25°F

-4°C

Humidity 63%
Wind Speed S 5 mph
Barometer 30.31 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 3 Mar 2:35 am EST
Extended Forecast for

Saint Clair MISimilar City Names

  • Overnight

    Overnight: Mostly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain, mainly between 1pm and 2pm. Mostly cloudy, with a high near 40. Light east wind. Chance of precipitation is 30%.

    High: 40 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. Calm wind becoming southeast around 5 mph.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 30%.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain, mainly after 1pm. High near 45. Chance of precipitation is 80%.

    High: 45 °F

    Chance Rain
    then Rain

  • Thursday Night

    Thursday Night: Rain likely before 1am. Cloudy, with a low around 40. Chance of precipitation is 60%.

    Low: 40 °F

    Rain Likely

  • Friday

    Friday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Rain likely. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 21. Calm wind.
Tuesday
A chance of rain, mainly between 1pm and 2pm. Mostly cloudy, with a high near 40. Light east wind. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 26. Calm wind.
Wednesday
Mostly sunny, with a high near 47. Calm wind becoming southeast around 5 mph.
Wednesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 30%.
Thursday
Rain, mainly after 1pm. High near 45. Chance of precipitation is 80%.
Thursday Night
Rain likely before 1am. Cloudy, with a low around 40. Chance of precipitation is 60%.
Friday
Mostly cloudy, with a high near 55.
Friday Night
Rain likely. Mostly cloudy, with a low around 47.
Saturday
Rain, mainly before 1pm. Mostly cloudy, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Clair MISimilar City Names
 42.82°N 82.51°W (Elev. 600 ft)
Last Update:
1:24 am EST Mar 3, 2026
Forecast Valid:
2am EST Mar 3, 2026-6pm EDT Mar 9, 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