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.

Fair

54°F

12°C

Humidity 88%
Wind Speed NW 5 mph
Barometer 30.11 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 26 Aug 8:55 am EDT
Extended Forecast for

3 Miles WSW Marine City MI

  • Today

    Today: A slight chance of showers after 2pm. Increasing clouds, with a high near 70. Northwest wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 70 °F

    Sunny then
    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 48. Northwest wind 3 to 7 mph.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 73. West northwest wind 5 to 8 mph.

    High: 73 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 57. West southwest wind 5 to 7 mph.

    Low: 57 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers and possibly a thunderstorm, mainly after 2pm. High near 70. Southwest wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm. Low around 48. Chance of precipitation is 80%.

    Low: 48 °F

    Showers then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers after 2pm. Increasing clouds, with a high near 70. Northwest wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 48. Northwest wind 3 to 7 mph.
Wednesday
Increasing clouds, with a high near 73. West northwest wind 5 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 57. West southwest wind 5 to 7 mph.
Thursday
Showers and possibly a thunderstorm, mainly after 2pm. High near 70. Southwest wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm before 8pm. Low around 48. Chance of precipitation is 80%.
Friday
Mostly sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 48.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 53.
Labor Day
Sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Marine City MI
 42.69°N 82.55°W (Elev. 600 ft)
Last Update:
5:13 am EDT Aug 26, 2025
Forecast Valid:
9am EDT Aug 26, 2025-6pm EDT Sep 1, 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