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

55°F

13°C

Humidity 88%
Wind Speed NW 6 mph
Barometer 30.23 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 18 Sep 3:16 am EDT
Extended Forecast for

2 Miles S Saint Clair MI

  • Overnight

    Overnight: Partly cloudy, with a low around 56. Light north wind.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71. North northeast wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 52. North northeast wind 3 to 8 mph.

    Low: 52 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers likely, mainly before 4pm. Cloudy, with a high near 68. East southeast wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 68 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers. Cloudy, with a low around 52. East wind 3 to 5 mph. Chance of precipitation is 40%.

    Low: 52 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.

    High: 66 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Cloudy, with a low around 47.

    Low: 47 °F

    Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 56. Light north wind.
Friday
Mostly sunny, with a high near 71. North northeast wind 5 to 10 mph, with gusts as high as 18 mph.
Friday Night
Mostly cloudy, with a low around 52. North northeast wind 3 to 8 mph.
Saturday
Showers likely, mainly before 4pm. Cloudy, with a high near 68. East southeast wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A chance of showers. Cloudy, with a low around 52. East wind 3 to 5 mph. Chance of precipitation is 40%.
Sunday
A chance of showers. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Mostly cloudy, with a high near 64.
Monday Night
Cloudy, with a low around 47.
Tuesday
Mostly cloudy, with a high near 63.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 49.
Wednesday
A chance of showers. Partly sunny, with a high near 64.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 49.
Thursday
Mostly cloudy, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Saint Clair MI
 42.8°N 82.48°W (Elev. 577 ft)
Last Update:
3:13 am EDT Sep 18, 2026
Forecast Valid:
3am EDT Sep 18, 2026-6pm EDT Sep 24, 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