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.

Fair

72°F

22°C

Humidity 50%
Wind Speed NE 9 mph
Barometer 29.98 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 22 Jun 4:15 pm EDT
Extended Forecast for

Marysville MI

  • This Afternoon

    This Afternoon: Sunny, with a high near 69. North northeast wind around 11 mph, with gusts as high as 20 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. North wind 3 to 8 mph.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72. North wind 5 to 9 mph.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. North northeast wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. Calm wind becoming south around 6 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 78. Chance of precipitation is 80%.

    High: 78 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 56.

    Low: 56 °F

    Showers then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 69. North northeast wind around 11 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 52. North wind 3 to 8 mph.
Tuesday
Sunny, with a high near 72. North wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 51. North northeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 77. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Thursday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 78. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 76.
Friday Night
Mostly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Mostly sunny, with a high near 81.
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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 Jun 22, 2026
Forecast Valid:
4pm EDT Jun 22, 2026-6pm EDT Jun 28, 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