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

66°F

19°C

Humidity 60%
Wind Speed NE 10 mph
Barometer 30.27 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 18 Sep 3:55 pm EDT
Extended Forecast for

Marine City MI

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 71. North northeast wind around 11 mph, with gusts as high as 20 mph.

    High: 71 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. North northeast wind 3 to 8 mph.

    Low: 53 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers likely, mainly between noon and 4pm. Cloudy, with a high near 68. Southeast wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 68 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, then showers after 4am. Some of the storms could produce heavy rainfall. Low around 54. East northeast wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 54 °F

    Heavy Rain

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 67. North northeast wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers

  • Sunday Night

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

    Low: 50 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Cloudy, with a low around 48.

    Low: 48 °F

    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 71. North northeast wind around 11 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 53. North northeast wind 3 to 8 mph.
Saturday
Showers likely, mainly between noon and 4pm. Cloudy, with a high near 68. Southeast wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Showers and thunderstorms likely, then showers after 4am. Some of the storms could produce heavy rainfall. Low around 54. East northeast wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
A chance of showers. Mostly cloudy, with a high near 67. North northeast wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 50.
Monday
Mostly cloudy, with a high near 66.
Monday Night
Cloudy, with a low around 48.
Tuesday
Mostly cloudy, with a high near 65.
Tuesday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 50.
Wednesday
A chance of showers. Mostly cloudy, with a high near 64.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 51.
Thursday
Mostly cloudy, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marine City MI
 42.73°N 82.49°W (Elev. 581 ft)
Last Update:
3:49 pm EDT Sep 18, 2026
Forecast Valid:
4pm EDT Sep 18, 2026-6pm EDT Sep 24, 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