Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Overcast

68°F

20°C

Humidity 88%
Wind Speed NE 8 mph
Barometer 29.79 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 2 Aug 9:36 am EDT
Extended Forecast for

Marine City MI

Flood Watch until August 2, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until August 2, 05:00pm

    NOW until 5:00pm Sun

    Flood Watch

  • Today

    High: 74 °F

    Heavy Rain

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 60. North wind 7 to 14 mph, with gusts as high as 25 mph.

    Low: 60 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 78. North wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. North northeast wind around 6 mph becoming calm  in the evening.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am.  Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms, mainly between 4pm and 5pm. Some of the storms could produce heavy rainfall. Steady temperature around 74. North northeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 60. North wind 7 to 14 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 78. North wind 8 to 11 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 56. North northeast wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 84. Calm wind becoming south southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 85.
Wednesday Night
A chance of showers after 2am. Partly cloudy, with a low around 64.
Thursday
A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 63.
Friday
Partly sunny, with a high near 84.
Friday Night
Mostly cloudy, with a low around 64.
Saturday
Partly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Marine City MI
 42.73°N 82.49°W (Elev. 581 ft)
4:24 am EDT Aug 2, 2026
11am EDT Aug 2, 2026-6pm EDT Aug 8, 2026
 
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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