Current conditions at

St Clair County International Airport (KPHN)

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

Fair

43°F

6°C

Humidity 49%
Wind Speed SW 6 mph
Barometer 30.04 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 22 Nov 1:15 pm EST
Detailed forecast for

St. Clair County

Early This Morning
Mostly clear. Near steady temperature in the lower 30s. Northwest winds 5 to 10 mph.
Today
Partly cloudy. Highs in the mid 40s. Northwest winds 5 to 10 mph, becoming west in the late afternoon.
Tonight
Mostly cloudy. Near steady temperature in the mid 30s. Southwest winds up to 15 mph with gusts up to 25 mph.
Sunday
Mostly cloudy in the morning then clearing. Highs in the upper 40s. West winds 10 to 15 mph with gusts up to 30 mph.
Sunday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 20s. West winds up to 10 mph.
Monday
Partly cloudy. Highs in the upper 40s. South winds up to 10 mph.
Monday Night
Cloudy. Rain likely after midnight. Near steady temperature around 40. Chance of rain 60 percent.
Tuesday
Rain. Highs in the lower 50s. Chance of rain 90 percent.
Tuesday Night
Cloudy with a 50 percent chance of rain. Lows in the upper 30s.
Wednesday
Mostly cloudy with a 30 percent chance of rain. Highs in the upper 40s.
Wednesday Night
Mostly cloudy. Lows in the upper 20s.
Thanksgiving Day
Mostly cloudy. Highs in the upper 30s.
Thursday Night
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 20s.
Friday
Partly cloudy in the morning, then becoming mostly cloudy. Highs in the mid 30s.



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401 AM EST Sat Nov 22 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database