Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

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

Fair

46°F

8°C

Humidity 89%
Wind Speed Calm
Barometer 29.93 in (1013.4 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 Mar 7:53 am CDT
Detailed forecast for

St. Clair County

Today
Sunny. Highs in the mid 80s. Southwest winds 10 to 15 mph.
Tonight
Partly cloudy in the evening, then clearing. Lows around 50. North winds 5 to 10 mph, becoming northeast after midnight.
Saturday
Sunny. Highs around 80. East winds around 5 mph, becoming south in the afternoon.
Saturday Night
Clear. Not as cool with lows in the lower 60s. South winds 5 to 10 mph.
Sunday
Mostly sunny. Highs in the upper 80s. South winds 10 to 15 mph, becoming west in the afternoon.
Sunday Night
Partly cloudy. A slight chance of showers in the evening. Much cooler with lows in the lower 40s. Chance of rain 20 percent.
Monday And Monday Night
Partly cloudy. Highs in the upper 50s. Lows around 40.
Tuesday And Tuesday Night
Mostly cloudy. Highs in the lower 60s. Lows in the lower 40s.
Wednesday
Partly sunny. Highs in the mid 60s.
Wednesday Night
Partly cloudy. Lows in the lower 50s.
Thursday
Sunny. A slight chance of showers in the afternoon. Not as cool with highs in the upper 70s. Chance of rain 20 percent.



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827 AM CDT Fri Mar 20 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database