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

50°F

10°C

Humidity 50%
Wind Speed S 9 mph
Barometer 29.89 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 27 Feb 1:15 pm EST
Extended Forecast for

3 Miles W Marysville MI

  • This Afternoon

    This Afternoon: Sunny, with a high near 49. South southwest wind around 9 mph, with gusts as high as 18 mph.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: A slight chance of rain between 11pm and 1am. Mostly cloudy, with a low around 28. South wind 7 to 10 mph becoming west northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 35. Northwest wind around 6 mph becoming north northeast in the afternoon.

    High: 35 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Snow likely between 7pm and 1am. Mostly cloudy, with a low around 17. Northeast wind around 6 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 17 °F

    Snow Likely

  • Sunday

    Sunday: Partly sunny, with a high near 24. North wind 6 to 8 mph.

    High: 24 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 9.

    Low: 9 °F

    Partly Cloudy

  • Monday

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

    High: 30 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 20.

    Low: 20 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A chance of rain and snow. Mostly cloudy, with a high near 40.

    High: 40 °F

    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Sunny, with a high near 49. South southwest wind around 9 mph, with gusts as high as 18 mph.
Tonight
A slight chance of rain between 11pm and 1am. Mostly cloudy, with a low around 28. South wind 7 to 10 mph becoming west northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 35. Northwest wind around 6 mph becoming north northeast in the afternoon.
Saturday Night
Snow likely between 7pm and 1am. Mostly cloudy, with a low around 17. Northeast wind around 6 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Sunday
Partly sunny, with a high near 24. North wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 9.
Monday
Partly sunny, then gradually becoming sunny, with a high near 30.
Monday Night
Increasing clouds, with a low around 20.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 40.
Tuesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 25.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 29.
Thursday
Rain likely. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation