Current conditions at

St Clair County International Airport (KPHN)

Lat: 42.91° N Lon: 82.53° W Elev: 636 ft.

Fair

30°F

-1°C

Humidity 75%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 17 Nov 6:15 am EST
Detailed forecast for

St. Clair County

Today
Partly cloudy. Highs in the lower 40s. Northwest winds 5 to 15 mph with gusts up to 25 mph.
Tonight
Mostly clear. Lows in the mid 20s. Northwest winds up to 5 mph.
Tuesday
Mostly cloudy. A chance of rain in the afternoon. Highs in the upper 30s. North winds up to 5 mph, becoming east in the afternoon. Chance of rain 40 percent.
Tuesday Night
Partly cloudy. Lows in the mid 20s. North winds up to 5 mph.
Wednesday
Partly cloudy. Highs in the mid 40s. East winds up to 5 mph.
Wednesday Night
Mostly cloudy. Lows in the upper 20s.
Thursday
Mostly cloudy. Highs in the upper 40s.
Thursday Night
Rain. Near steady temperature in the lower 40s. Chance of rain 80 percent.
Friday
Mostly cloudy with a 50 percent chance of rain. Highs around 50.
Friday Night
Mostly cloudy with a 40 percent chance of rain. Lows in the lower 30s.
Saturday
Mostly cloudy in the morning, then becoming partly cloudy. Highs in the mid 40s.
Saturday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 30s.
Sunday
Partly cloudy. Highs in the upper 40s.



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303 AM EST Mon Nov 17 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database