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

23°F

-5°C

Humidity 63%
Wind Speed Calm
Barometer 30.31 in (1027.6 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 22 Jan 7:54 pm CST
Extended Forecast for

Weldon Spring MO

Cold Weather Advisory January 24, 12:00am until January 24, 12:00pm
Winter Storm Warning January 24, 12:00am until January 25, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning

  • Tonight

    Tonight: Partly 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 24 mph.

    Low: 9 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 13. North wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 13 °F

    Cold

  • Friday Night

    Friday Night: A 30 percent chance of snow after 3am. Mostly cloudy, with a low around 4. Wind chill values as low as -10. Northeast wind around 11 mph.

    Low: 4 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow. High near 11. Wind chill values as low as -10. Northeast wind 8 to 10 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 11 °F

    Snow

  • Saturday Night

    Saturday Night: Snow. Low around 9. Northeast wind 6 to 9 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 9 °F

    Snow

  • Sunday

    Sunday: Snow likely, mainly before noon. Cloudy and cold, with a high near 14. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 14 °F

    Snow Likely

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Partly cloudy, with a low around -2.

    Low: -2 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Monday

    Monday: Sunny and cold, with a high near 19.

    High: 19 °F

    Cold

  • Monday Night

    Monday Night: Mostly clear, with a low around 6.

    Low: 6 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly 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 24 mph.
Friday
Partly sunny and cold, with a high near 13. North wind 11 to 16 mph, with gusts as high as 25 mph.
Friday Night
A 30 percent chance of snow after 3am. Mostly cloudy, with a low around 4. Wind chill values as low as -10. Northeast wind around 11 mph.
Saturday
Snow. High near 11. Wind chill values as low as -10. Northeast wind 8 to 10 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Saturday Night
Snow. Low around 9. Northeast wind 6 to 9 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Sunday
Snow likely, mainly before noon. Cloudy and cold, with a high near 14. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around -2.
Monday
Sunny and cold, with a high near 19.
Monday Night
Mostly clear, with a low around 6.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 14.
Wednesday
Partly sunny, with a high near 27.
Wednesday Night
Partly cloudy, with a low around 5.
Thursday
Partly sunny and cold, with a high near 20.
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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:
8:21 pm CST Jan 22, 2026
Forecast Valid:
8pm CST Jan 22, 2026-6pm CST Jan 29, 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