Current conditions at

St Clair County International Airport (KPHN)

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

Fog/Mist

34°F

1°C

Humidity 93%
Wind Speed NE 3 mph
Barometer 30.33 in
Dewpoint 32°F (0°C)
Visibility 0.75 mi
Last update 21 Oct 3:35 am EDT
Detailed forecast for

St. Clair County

Today
Patchy fog in the morning. Sunny. Highs in the mid 60s. Southeast winds up to 5 mph, becoming south early in the afternoon, then, becoming east in the late afternoon.
Tonight
Mostly clear. Lows in the lower 40s. Southwest winds up to 5 mph, becoming northwest after midnight.
Thursday
Sunny. Highs in the mid 60s. North winds up to 10 mph.
Thursday Night
Mostly clear. Lows in the upper 30s. Northeast winds up to 10 mph.
Friday
Sunny. Highs in the lower 60s. Southeast winds up to 10 mph.
Friday Night
Clear. Lows in the upper 30s.
Saturday
Mostly sunny. Highs in the mid 60s.
Saturday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s.
Sunday
Partly cloudy. Highs in the upper 60s.
Sunday Night
Partly cloudy. Lows in the upper 40s.
Monday
Mostly cloudy in the morning, then becoming partly cloudy. Highs in the lower 60s.
Monday Night
Mostly cloudy. Lows in the mid 40s.
Tuesday
Mostly cloudy in the morning, then becoming partly cloudy. Highs in the mid 50s.



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314 AM EDT Wed Oct 21 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database