National Weather Service

News Headlines

NWS St. Louis 2026 Spotter Talk Schedule Now Available!

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66° N Lon: 90.66° W Elev: 463 ft.

Overcast

21°F

-6°C

Humidity	57%
Wind Speed	W 14 mph
Barometer	30.18 in (1023.0 mb)
Dewpoint	8°F (-13°C)
Visibility	10.00 mi
Wind Chill	8°F (-13°C)
Last update	17 Jan 1:54 pm CST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

St. Charles County

This Afternoon

Mostly cloudy with a chance of flurries. Much cooler. Near steady temperature in the lower 20s. West winds 15 to 20 mph with gusts up to 30 mph.

Tonight

Mostly cloudy with a chance of flurries in the evening, then partly cloudy after midnight. Lows around 12. West winds 10 to 15 mph. Wind chill values as low as 4 above.

Sunday

Mostly sunny in the morning, then becoming mostly cloudy. A chance of flurries. Highs in the lower 30s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Wind chill values as low as 3 above.

Sunday Night

Partly cloudy with a chance of flurries in the evening, then mostly clear after midnight. Lows around 12. Northwest winds 15 to 20 mph with gusts up to 30 mph. Wind chill values as low as 5 below after midnight.

Martin Luther King Jr Day

Sunny, cooler with highs in the lower 20s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Wind chill values as low as 6 below in the morning.

Monday Night

Mostly clear. Lows around 10 above.

Tuesday And Tuesday Night

Partly cloudy. Highs in the upper 30s. Lows in the upper 20s. Wind chill values as low as zero.

Wednesday And Wednesday Night

Partly cloudy. Highs in the mid 40s. Lows in the lower 20s.

Thursday

Sunny. Highs in the upper 30s.

Thursday Night

Partly cloudy. Lows in the mid 20s.