Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

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

Fair

71°F

22°C

Humidity 32%
Wind Speed N 5 mph
Barometer 30.22 in (1023.3 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 11 May 11:53 am CDT
Detailed forecast for

St. Clair County

This Afternoon
Sunny. Highs in the mid 70s. Northwest winds 5 to 10 mph.
Tonight
Clear. Lows in the lower 50s. North winds 5 to 10 mph, becoming southeast after midnight.
Tuesday
Sunny. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Tuesday Night
Partly cloudy with a chance of showers and thunderstorms. Lows in the upper 50s. West winds 10 to 15 mph. Chance of rain 50 percent.
Wednesday
Sunny. Highs in the mid 70s. Northwest winds 15 to 20 mph.
Wednesday Night
Clear. Lows in the upper 40s.
Thursday
Sunny. Highs in the mid 70s.
Thursday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s.
Friday
Mostly sunny. A chance of showers and thunderstorms, mainly in the morning. Highs in the lower 80s. Chance of rain 40 percent.
Friday Night
Partly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Not as cool with lows in the mid 60s. Chance of rain 40 percent.
Saturday Through Sunday
Partly cloudy with a slight chance of showers and thunderstorms. Highs in the upper 80s. Lows in the mid 60s. Chance of rain 20 percent.



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1058 AM CDT Mon May 11 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database