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 72%
Wind Speed S 9 mph
Barometer 29.85 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 7 Oct 3:56 am EDT
Extended Forecast for

Marine City MI

  • Today

    Today: A slight chance of showers after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 74. West southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 74 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers before 1am. Partly cloudy, with a low around 49. West wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 67. West northwest wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42. West wind around 5 mph becoming calm after midnight.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 67. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of rain. Partly sunny, with a high near 72.

    High: 72 °F

    Chance Rain

Detailed Forecast

Today
A slight chance of showers after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 74. West southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers before 1am. Partly cloudy, with a low around 49. West wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 67. West northwest wind 6 to 11 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 42. West wind around 5 mph becoming calm after midnight.
Friday
Sunny, with a high near 67. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
A chance of rain. Partly sunny, with a high near 72.
Sunday Night
A chance of rain before 2am. Mostly cloudy, with a low around 54.
Columbus Day
Partly sunny, with a high near 71.
Monday Night
A chance of rain. Mostly cloudy, with a low around 51.
Tuesday
A chance of rain. Partly sunny, with a high near 65.
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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 am EDT Oct 7, 2026
Forecast Valid:
4am EDT Oct 7, 2026-6pm EDT Oct 13, 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