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.

Overcast

70°F

21°C

Humidity 69%
Wind Speed N 7 mph
Barometer 30.35 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Sep 12:15 pm EDT
Extended Forecast for

3 Miles WSW Marine City MI

  • This Afternoon

    This Afternoon: Isolated showers. Cloudy, with a high near 71. North northeast wind around 9 mph. Chance of precipitation is 20%.

    High: 71 °F

    Isolated
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. North northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 75. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 75 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56. North northeast wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72. North northeast wind 5 to 8 mph.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers, mainly after 8am. High near 68. Chance of precipitation is 80%.

    High: 68 °F

    Showers

  • Saturday Night

    Saturday Night: Showers, mainly before 2am. Cloudy, with a low around 55.

    Low: 55 °F

    Showers

  • Sunday

    Sunday: A chance of showers before 2pm. Mostly cloudy, with a high near 70.

    High: 70 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Isolated showers. Cloudy, with a high near 71. North northeast wind around 9 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. North northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 75. Calm wind becoming north northwest around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 56. North northeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 72. North northeast wind 5 to 8 mph.
Friday Night
A chance of showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Saturday
Showers, mainly after 8am. High near 68. Chance of precipitation is 80%.
Saturday Night
Showers, mainly before 2am. Cloudy, with a low around 55.
Sunday
A chance of showers before 2pm. Mostly cloudy, with a high near 70.
Sunday Night
Mostly cloudy, with a low around 54.
Monday
A chance of showers. Mostly cloudy, with a high near 70.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
A chance of showers. Partly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Marine City MI
 42.69°N 82.55°W (Elev. 600 ft)
Last Update:
9:49 am EDT Sep 16, 2026
Forecast Valid:
12pm EDT Sep 16, 2026-6pm EDT Sep 22, 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