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.

Overcast

61°F

16°C

Humidity 52%
Wind Speed S 8 G 16 mph
Barometer 30.08 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 10 Oct 5:55 pm EDT
Extended Forecast for

Marysville MI

  • Tonight

    Tonight: A chance of showers, mainly between 7pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 45. South wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 45 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers. Mostly sunny, with a high near 63. Light and variable wind becoming north 5 to 9 mph in the morning. Chance of precipitation is 20%.

    High: 63 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45. Light east wind.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 69. East wind 5 to 9 mph.

    High: 69 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 49. East wind around 6 mph.

    Low: 49 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers, mainly between 7pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 45. South wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Saturday
A slight chance of showers. Mostly sunny, with a high near 63. Light and variable wind becoming north 5 to 9 mph in the morning. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 45. Light east wind.
Sunday
Mostly sunny, with a high near 69. East wind 5 to 9 mph.
Sunday Night
Partly cloudy, with a low around 49. East wind around 6 mph.
Columbus Day
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Partly sunny, with a high near 67.
Tuesday Night
Mostly cloudy, with a low around 46.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
A chance of showers. Partly cloudy, with a low around 42.
Friday
A chance of showers. Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marysville MI
 42.91°N 82.47°W (Elev. 587 ft)
Last Update:
5:13 pm EDT Oct 10, 2025
Forecast Valid:
6pm EDT Oct 10, 2025-6pm EDT Oct 17, 2025
 
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