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.

Mostly Cloudy

63°F

17°C

Humidity 88%
Wind Speed S 8 mph
Barometer 29.92 in
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Last update 12 Oct 10:55 am EDT
Extended Forecast for

Marysville MI

  • Columbus Day

    Columbus Day: Mostly cloudy, with a high near 77. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of rain and thunderstorms, mainly after 1am. Partly cloudy, with a low around 63. South southwest wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday

    Tuesday: Sunny, with a high near 82. South southwest wind 10 to 15 mph, with gusts as high as 28 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain after 2am. Partly cloudy, with a low around 57. West northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 30%.

    Low: 57 °F

    Partly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: A chance of rain before 8am. Mostly cloudy, with a high near 67. Calm wind becoming north 5 to 9 mph in the morning. Chance of precipitation is 30%.

    High: 67 °F

    Chance Rain
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 40%.

    High: 65 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Rain Likely

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 60. Breezy.

    High: 60 °F

    Chance Rain
    and Breezy

Detailed Forecast

Columbus Day
Mostly cloudy, with a high near 77. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tonight
A chance of rain and thunderstorms, mainly after 1am. Partly cloudy, with a low around 63. South southwest wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
Tuesday
Sunny, with a high near 82. South southwest wind 10 to 15 mph, with gusts as high as 28 mph.
Tuesday Night
A chance of rain after 2am. Partly cloudy, with a low around 57. West northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 30%.
Wednesday
A chance of rain before 8am. Mostly cloudy, with a high near 67. Calm wind becoming north 5 to 9 mph in the morning. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
A chance of rain after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 40%.
Thursday Night
Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 49.
Friday
A chance of rain. Mostly cloudy, with a high near 60. Breezy.
Friday Night
Mostly cloudy, with a low around 36. Breezy.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Sunny, with a high near 58.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marysville MI
 42.91°N 82.47°W (Elev. 587 ft)
Last Update:
10:49 am EDT Oct 12, 2026
Forecast Valid:
11am EDT Oct 12, 2026-6pm EDT Oct 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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