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.

Fog/Mist

48°F

9°C

Humidity 100%
Wind Speed Calm
Barometer 30.28 in
Dewpoint 48°F (9°C)
Visibility 4.00 mi
Last update 14 Oct 9:15 am EDT
Extended Forecast for

Marine City MI

  • Today

    Today: Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 69. Light north wind increasing to 5 to 10 mph in the afternoon.

    High: 69 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A chance of showers, mainly after 2am. Increasing clouds, with a low around 47. North wind 5 to 8 mph. Chance of precipitation is 30%.

    Low: 47 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 11am. Cloudy through mid morning, then gradual clearing, with a high near 62. North wind 6 to 9 mph. Chance of precipitation is 30%.

    High: 62 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 37. North wind around 6 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 63. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers after 2pm. Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 69. Light north wind increasing to 5 to 10 mph in the afternoon.
Tonight
A chance of showers, mainly after 2am. Increasing clouds, with a low around 47. North wind 5 to 8 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers before 11am. Cloudy through mid morning, then gradual clearing, with a high near 62. North wind 6 to 9 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 37. North wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 63. Calm wind becoming north northeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly cloudy, with a high near 66.
Friday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 52.
Saturday
A chance of showers after 2pm. Partly sunny, with a high near 74.
Saturday Night
Showers likely, mainly after 8pm. Mostly cloudy, with a low around 51.
Sunday
Showers likely. Mostly cloudy, with a high near 64.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 42.
Monday
A chance of showers. Mostly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marine City MI
 42.71°N 82.49°W (Elev. 581 ft)
Last Update:
5:13 am EDT Oct 14, 2025
Forecast Valid:
9am EDT Oct 14, 2025-6pm EDT Oct 20, 2025
 
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