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.

Fair

39°F

4°C

Humidity 87%
Wind Speed NW 3 mph
Barometer 30.43 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 8 Oct 9:35 pm EDT
Extended Forecast for

Marysville MI

Frost Advisory October 9, 12:00am until October 9, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. North wind 5 to 7 mph becoming light and variable after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 60. Calm wind becoming east around 6 mph in the afternoon.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Patchy frost before 8am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 65 °F

    Patchy Frost
    then Mostly
    Sunny

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 47. South wind 3 to 6 mph. Chance of precipitation is 40%.

    Low: 47 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers after 2pm. Partly sunny, with a high near 65. Chance of precipitation is 30%.

    High: 65 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 36. North wind 5 to 7 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 60. Calm wind becoming east around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 36. Calm wind.
Friday
Patchy frost before 8am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming south southwest 5 to 9 mph in the morning.
Friday Night
A chance of showers. Mostly cloudy, with a low around 47. South wind 3 to 6 mph. Chance of precipitation is 40%.
Saturday
A chance of showers after 2pm. Partly sunny, with a high near 65. Chance of precipitation is 30%.
Saturday Night
A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 46.
Columbus Day
Sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 68.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 66.
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:
5:13 pm EDT Oct 8, 2025
Forecast Valid:
9pm EDT Oct 8, 2025-6pm EDT Oct 15, 2025
 
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