Current conditions at

St Clair County International Airport (KPHN)

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

Fair

21°F

-6°C

Humidity 100%
Wind Speed Calm
Barometer 30.14 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 18 Nov 7:35 am EST
Detailed forecast for

St. Clair County

Today
Cloudy. A slight chance of snow in the morning, then a slight chance of rain and snow in the afternoon. Highs in the upper 30s. North winds up to 5 mph, becoming east in the afternoon. Chance of precipitation 20 percent.
Tonight
Cloudy with a chance of rain, possibly mixed with snow in the evening, then partly cloudy after midnight. Lows in the mid 20s. North winds up to 10 mph. Chance of precipitation 40 percent.
Wednesday
Partly cloudy. Highs in the mid 40s. Northeast winds up to 5 mph.
Wednesday Night
Mostly cloudy. Lows in the upper 20s. Southeast winds up to 5 mph.
Thursday
Mostly cloudy. Highs in the upper 40s. South winds up to 10 mph.
Thursday Night
Cloudy with a 40 percent chance of rain. Lows in the upper 30s.
Friday
Mostly cloudy in the morning, then becoming partly cloudy. Highs in the upper 40s.
Friday Night
Partly cloudy. Lows in the upper 20s.
Saturday
Partly cloudy. Highs in the mid 40s.
Saturday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows around 30.
Sunday
Partly cloudy. Highs in the upper 40s.
Sunday Night
Partly cloudy. Lows in the lower 30s.
Monday
Partly cloudy. Highs in the lower 50s.



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557 AM EST Tue Nov 18 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database