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.

Partly Cloudy

66°F

19°C

Humidity 78%
Wind Speed NW 6 mph
Barometer 29.81 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 22 Aug 7:15 pm EDT
Extended Forecast for

Marysville MI

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 57. West northwest wind 7 to 9 mph. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 72. West northwest wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 72 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 54. Northwest wind around 8 mph. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 73. West northwest wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. Light west northwest wind.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 57. West northwest wind 7 to 9 mph. Chance of precipitation is 50%.
Sunday
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 72. West northwest wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 54. Northwest wind around 8 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 73. West northwest wind 11 to 14 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 54. Light west northwest wind.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 63.
Thursday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 82.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marysville MI
 42.91°N 82.5°W (Elev. 627 ft)
Last Update:
4:24 pm EDT Aug 22, 2026
Forecast Valid:
7pm EDT Aug 22, 2026-6pm EDT Aug 29, 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