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.

Partly Cloudy

25°F

-4°C

Humidity 80%
Wind Speed S 3 mph
Barometer 29.91 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 27 Feb 2:15 am EST
Extended Forecast for

3 Miles W Marysville MI

  • Overnight

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

    Low: 21 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 49. Calm wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 24 mph.

    High: 49 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29. South southwest wind 7 to 9 mph becoming west after midnight. Winds could gust as high as 26 mph.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 36. West northwest wind around 7 mph becoming north in the afternoon.

    High: 36 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow likely before 1am. Mostly cloudy, with a low around 16. North northeast wind 5 to 7 mph. Chance of precipitation is 60%. New snow accumulation of around 2 inches.

    Low: 16 °F

    Snow Likely

  • Sunday

    Sunday: Partly sunny, with a high near 24.

    High: 24 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 30.

    High: 30 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 21. Calm wind.
Friday
Sunny, with a high near 49. Calm wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 24 mph.
Friday Night
Mostly cloudy, with a low around 29. South southwest wind 7 to 9 mph becoming west after midnight. Winds could gust as high as 26 mph.
Saturday
Partly sunny, with a high near 36. West northwest wind around 7 mph becoming north in the afternoon.
Saturday Night
Snow likely before 1am. Mostly cloudy, with a low around 16. North northeast wind 5 to 7 mph. Chance of precipitation is 60%. New snow accumulation of around 2 inches.
Sunday
Partly sunny, with a high near 24.
Sunday Night
Mostly cloudy, with a low around 11.
Monday
Partly sunny, then gradually becoming sunny, with a high near 30.
Monday Night
Mostly cloudy, with a low around 18.
Tuesday
A chance of rain and snow after 1pm. Mostly cloudy, with a high near 39.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 31.
Thursday
Rain likely. Cloudy, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Marysville MI
 42.91°N 82.53°W (Elev. 646 ft)
Last Update:
1:24 am EST Feb 27, 2026
Forecast Valid:
2am EST Feb 27, 2026-6pm EST Mar 5, 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