Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

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

Fair

51°F

11°C

Humidity 36%
Wind Speed S 8 mph
Barometer 30.25 in (1024.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 12 Mar 1:53 pm CDT
Detailed forecast for

St. Clair County

This Afternoon
Sunny. Highs in the mid 50s. Southwest winds 5 to 10 mph with gusts up to 20 mph.
Tonight
Partly cloudy and breezy. Not as cool with lows in the mid 40s. South winds 15 to 25 mph with gusts up to 35 mph.
Friday
Mostly sunny. Highs around 60. West winds 15 to 20 mph with gusts up to 30 mph.
Friday Night
Partly cloudy. Lows in the mid 30s. Northwest winds 5 to 10 mph, becoming northeast after midnight.
Saturday
Partly sunny. Highs in the mid 60s. Southeast winds 10 to 15 mph.
Saturday Night
Mostly cloudy. Not as cool with lows in the mid 50s.
Sunday
Mostly cloudy. A chance of rain with a slight chance of thunderstorms in the morning, then rain with a chance of thunderstorms in the afternoon. Breezy with highs in the upper 60s. Chance of rain 90 percent.
Sunday Night
Rain, snow with a slight chance of thunderstorms in the evening, then a chance of snow after midnight. Light snow accumulation. Windy and much cooler with lows in the lower 20s. Chance of precipitation 90 percent. Wind chill values as low as 5 above after midnight.
Monday
Mostly cloudy with a slight chance of snow in the morning, then mostly sunny in the afternoon. Windy and much cooler with highs in the upper 20s. Chance of snow 20 percent. Wind chill values as low as 5 above.
Monday Night
Mostly clear. Lows 10 to 15. Wind chill values as low as zero.
Tuesday
Mostly sunny. Highs in the mid 30s. Wind chill values as low as 5 above in the morning.
Tuesday Night
Mostly cloudy. A slight chance of rain and snow after midnight. Not as cool with lows in the upper 20s. Chance of precipitation 20 percent.
Wednesday
Partly sunny. Not as cool with highs in the mid 50s.



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146 PM CDT Thu Mar 12 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database