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

57°F

14°C

Humidity 77%
Wind Speed N 7 mph
Barometer 30.13 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 14 Oct 5:55 pm EDT
Extended Forecast for

Marysville MI

  • Tonight

    Tonight: Increasing clouds, with a low around 46. North northeast wind 5 to 9 mph.

    Low: 46 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A chance of rain, mainly after 4pm. Mostly cloudy, with a high near 61. East northeast wind 5 to 8 mph. Chance of precipitation is 30%.

    High: 61 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain before 3am, then rain after 4am. Low around 50. East wind 5 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Rain

  • Friday

    Friday: Rain. High near 59. Northwest wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Rain

  • Friday Night

    Friday Night: Rain, mainly before 8pm. Low around 37. Breezy, with a north northwest wind 16 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Rain and
    Breezy then
    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 46. North northeast wind 5 to 9 mph.
Thursday
A chance of rain, mainly after 4pm. Mostly cloudy, with a high near 61. East northeast wind 5 to 8 mph. Chance of precipitation is 30%.
Thursday Night
Rain before 3am, then rain after 4am. Low around 50. East wind 5 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 59. Northwest wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain, mainly before 8pm. Low around 37. Breezy, with a north northwest wind 16 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 53.
Saturday Night
Clear, with a low around 36.
Sunday
Sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marysville MI
 42.91°N 82.47°W (Elev. 587 ft)
Last Update:
4:24 pm EDT Oct 14, 2026
Forecast Valid:
6pm EDT Oct 14, 2026-6pm EDT Oct 21, 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