Current conditions at

St Clair County International Airport (KPHN)

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

Fair

77°F

25°C

Humidity 39%
Wind Speed NW 6 mph
Barometer 29.85 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 12 Jun 7:36 pm EDT
Detailed forecast for

St. Clair County

Tonight
Clear. Lows in the upper 50s. West winds 5 to 10 mph. Gusts up to 25 mph in the evening.
Saturday
Mostly sunny. Highs in the mid 80s. Southwest winds 5 to 15 mph with gusts up to 25 mph.
Saturday Night
Mostly cloudy. Showers likely after midnight. Lows in the upper 50s. Southwest winds 5 to 10 mph, becoming west after midnight. Gusts up to 25 mph. Chance of rain 70 percent.
Sunday
Showers in the morning, then partly cloudy in the afternoon. Highs in the lower 70s. Northwest winds 5 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent.
Sunday Night
Partly cloudy in the evening then clearing. Lows in the upper 40s. Northwest winds up to 10 mph.
Monday
Partly cloudy. Highs in the lower 70s.
Monday Night
Partly cloudy in the evening then clearing. Lows around 50.
Tuesday
Mostly sunny in the morning, then partly cloudy with a chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 30 percent.
Tuesday Night
Partly cloudy. A chance of showers. Lows in the mid 50s. Chance of rain 50 percent.
Wednesday
Partly cloudy. A chance of showers. Highs in the upper 70s. Chance of rain 50 percent.
Wednesday Night
Showers and a chance of thunderstorms. Lows in the upper 50s. Chance of rain 80 percent.
Thursday
Breezy. Mostly cloudy with showers likely in the morning, then partly cloudy with a chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 70 percent.
Thursday Night
Partly cloudy. Lows in the mid 50s.
Juneteenth
Mostly sunny. Highs in the upper 70s.



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348 PM EDT Fri Jun 12 2026
 
 

Additional Resources

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National Digital Forecast Database