National Weather Service

News Headlines

NWS St. Louis 2026 Spotter Talk Schedule Now Available!

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

39°F

4°C

Humidity	57%
Wind Speed	NE 6 mph
Barometer	30.14 in (1021.2 mb)
Dewpoint	25°F (-4°C)
Visibility	10.00 mi
Wind Chill	35°F (2°C)
Last update	2 Feb 4:54 pm CST

More Information:

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

Extended Forecast for

Weldon Spring MO

Tonight
Low: 29 °F
Mostly Cloudy
then Slight
Chance
Freezing Rain
Tuesday
High: 34 °F
Slight Chance
Wintry Mix
then Partly
Sunny
Tuesday Night
Low: 17 °F
Mostly Cloudy
Wednesday
High: 31 °F
Mostly Sunny
Wednesday Night
Low: 17 °F
Mostly Clear
Thursday
High: 43 °F
Mostly Sunny
Thursday Night
Low: 33 °F
Mostly Clear
Friday
High: 50 °F
Sunny
Friday Night
Low: 23 °F
Mostly Clear

Detailed Forecast

Tonight

A slight chance of freezing rain after 4am. Mostly cloudy, with a low around 29. Light northeast wind. Chance of precipitation is 20%.

Tuesday

A slight chance of snow and freezing rain before 9am, then a slight chance of freezing rain between 9am and 10am. Mostly cloudy, with a high near 34. North wind 5 to 9 mph. Chance of precipitation is 20%.

Tuesday Night

Mostly cloudy, with a low around 17. North wind around 5 mph becoming calm in the evening.

Wednesday

Mostly sunny, with a high near 31. Calm wind becoming north around 6 mph.

Wednesday Night

Mostly clear, with a low around 17. Calm wind.

Thursday

Mostly sunny, with a high near 43.

Thursday Night

Mostly clear, with a low around 33.

Friday

Sunny, with a high near 50.