National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

32°F

0°C

Humidity 36%
Wind Speed Vrbl 5 mph
Barometer 30.36 in (1028.7 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 22 Jan 9:54 am CST
Extended Forecast for

Weldon Spring MO

Winter Storm Watch January 24, 12:00am until January 25, 12:00pm
Cold Weather Advisory January 24, 12:00am until January 24, 12:00pm
Click here for hazard details and duration
Winter Storm Watch
Cold Weather Advisory

  • Today

    Today: Partly sunny, with a high near 39. West wind 3 to 6 mph.

    High: 39 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 9. Light and variable wind becoming north 10 to 15 mph in the evening. Winds could gust as high as 23 mph.

    Low: 9 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 13. North wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 13 °F

    Cold

  • Friday Night

    Friday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 4. Wind chill values as low as -10. Northeast wind around 10 mph.

    Low: 4 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow, mainly after noon. High near 12. Northeast wind 7 to 10 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 12 °F

    Chance Snow
    then Snow

  • Saturday Night

    Saturday Night: Snow. Low around 8. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 8 °F

    Snow

  • Sunday

    Sunday: A 40 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 17.

    High: 17 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 0.

    Low: 0 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 23.

    High: 23 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 39. West wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 9. Light and variable wind becoming north 10 to 15 mph in the evening. Winds could gust as high as 23 mph.
Friday
Mostly cloudy and cold, with a high near 13. North wind 10 to 15 mph, with gusts as high as 24 mph.
Friday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 4. Wind chill values as low as -10. Northeast wind around 10 mph.
Saturday
Snow, mainly after noon. High near 12. Northeast wind 7 to 10 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Saturday Night
Snow. Low around 8. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Sunday
A 40 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 17.
Sunday Night
Partly cloudy, with a low around 0.
Monday
Sunny, with a high near 23.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
Mostly cloudy, with a low around 16.
Wednesday
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring MO
 38.72°N 90.65°W (Elev. 584 ft)
Last Update:
8:51 am CST Jan 22, 2026
Forecast Valid:
10am CST Jan 22, 2026-6pm CST Jan 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation