Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56° N Lon: 90.15° W Elev: 410 ft.

Fair

72°F

22°C

Humidity 38%
Wind Speed S 13 G 18 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 4 Nov 1:53 pm CST
Detailed forecast for

St. Clair County

This Afternoon
Mostly sunny. Highs around 70. South winds 10 to 15 mph with gusts up to 25 mph.
Tonight
Mostly cloudy in the evening, then becoming partly cloudy. Not as cool with lows in the lower 50s. South winds 5 to 10 mph with gusts up to 20 mph.
Wednesday
Sunny. Highs around 70. Temperature falling into the mid 60s in the afternoon. West winds 10 to 15 mph, becoming northwest in the afternoon. Gusts up to 30 mph.
Wednesday Night
Clear, cooler with lows in the upper 30s. North winds around 5 mph, becoming northeast after midnight.
Thursday
Sunny. Highs in the mid 60s. Southeast winds 10 to 15 mph with gusts up to 25 mph.
Thursday Night
Mostly cloudy. A chance of rain after midnight. Not as cool with lows in the mid 50s. Chance of rain 40 percent.
Friday
Mostly sunny. A chance of rain in the morning. Highs in the upper 60s. Chance of rain 40 percent.
Friday Night
Mostly clear. Cooler with lows in the lower 40s.
Saturday
Mostly sunny. Highs in the mid 60s.
Saturday Night
Partly cloudy. A slight chance of rain in the evening. Lows in the upper 30s. Chance of rain 20 percent.
Sunday Through Monday
Mostly clear. Highs in the upper 40s. Lows in the upper 20s.



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1103 AM CST Tue Nov 4 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database