Current conditions at

St Clair County International Airport (KPHN)

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

Fair

64°F

18°C

Humidity 40%
Wind Speed NE 8 mph
Barometer 30.21 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 30 May 3:55 pm EDT
Detailed forecast for

St. Clair County

Tonight
Mostly clear. Lows in the mid 40s. Northeast winds up to 10 mph, becoming northwest early in the morning.
Sunday
Sunny. Highs in the mid 70s. West winds up to 10 mph.
Sunday Night
Mostly clear. Lows in the upper 40s. East winds up to 5 mph, becoming north after midnight.
Monday
Sunny. Highs in the lower 70s. Northeast winds up to 15 mph.
Monday Night
Clear. Lows in the upper 40s. North winds up to 10 mph.
Tuesday
Mostly sunny. Highs in the lower 70s.
Tuesday Night
Mostly clear. Lows in the upper 40s.
Wednesday
Sunny. Highs in the upper 70s.
Wednesday Night
Mostly clear. Lows in the lower 50s.
Thursday
Mostly sunny. Highs in the mid 80s.
Thursday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows around 60.
Friday
Mostly cloudy in the morning, then partly cloudy with a chance of showers in the afternoon. Highs in the mid 80s. Chance of rain 30 percent.
Friday Night
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. Lows around 60. Chance of rain 50 percent.
Saturday
Mostly cloudy with a chance of showers in the morning, then partly cloudy with a chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 50 percent.



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339 PM EDT Sat May 30 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database