National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91°NLon: 82.53°WElev: 636ft.

Mostly Cloudy

72°F

22°C

Humidity 50%
Wind Speed SE 6 mph
Barometer 30.00 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 21 Aug 8:55 pm EDT
Extended Forecast for

3 Miles SSW Marine City MI

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. Southeast wind 3 to 6 mph. Chance of precipitation is 40%.

    Low: 63 °F

    Scattered
    T-storms

  • Saturday

    Saturday: Scattered showers and thunderstorms before 10am, then showers likely and possibly a thunderstorm between 10am and 5pm, then showers and thunderstorms likely after 5pm. Mostly cloudy, with a high near 77. Southwest wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 77 °F

    Showers
    Likely then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Northwest wind around 7 mph. Chance of precipitation is 40%.

    Low: 57 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Scattered showers after 2pm. Increasing clouds, with a high near 72. West northwest wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 72 °F

    Partly Sunny
    then
    Scattered
    Showers

  • Sunday Night

    Sunday Night: Scattered showers before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 52. Northwest wind around 6 mph. Chance of precipitation is 30%.

    Low: 52 °F

    Scattered
    Showers then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. Southeast wind 3 to 6 mph. Chance of precipitation is 40%.
Saturday
Scattered showers and thunderstorms before 10am, then showers likely and possibly a thunderstorm between 10am and 5pm, then showers and thunderstorms likely after 5pm. Mostly cloudy, with a high near 77. Southwest wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Northwest wind around 7 mph. Chance of precipitation is 40%.
Sunday
Scattered showers after 2pm. Increasing clouds, with a high near 72. West northwest wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Sunday Night
Scattered showers before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 52. Northwest wind around 6 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 81.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 62.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Marine City MI
 42.69°N 82.49°W (Elev. 577 ft)
Last Update:
4:24 pm EDT Aug 21, 2026
Forecast Valid:
8pm EDT Aug 21, 2026-6pm EDT Aug 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