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

48°F

9°C

Humidity 30%
Wind Speed W 16 G 31 mph
Barometer 30.04 in (1017.5 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 21 Jan 1:54 pm CST
Extended Forecast for

Weldon Spring MO

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

  • This Afternoon

    This Afternoon: Sunny, with a high near 45. West wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 45 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 22. West wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.

    Low: 22 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 38. Calm wind becoming west around 5 mph.

    High: 38 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 8. Light and variable wind becoming north 10 to 15 mph in the evening. Winds could gust as high as 25 mph.

    Low: 8 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 14. North wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 14 °F

    Cold

  • Friday Night

    Friday Night: A 30 percent chance of snow after midnight. Cloudy, with a low around 3.

    Low: 3 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow likely, mainly after noon. Cloudy and cold, with a high near 13. Chance of precipitation is 70%.

    High: 13 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Snow, mainly before midnight. Low around 8. Chance of precipitation is 80%.

    Low: 8 °F

    Snow then
    Chance Snow

  • Sunday

    Sunday: A 40 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 19.

    High: 19 °F

    Chance Snow

Detailed Forecast

This Afternoon
Sunny, with a high near 45. West wind 8 to 13 mph, with gusts as high as 23 mph.
Tonight
Partly cloudy, with a low around 22. West wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.
Thursday
Partly sunny, with a high near 38. Calm wind becoming west around 5 mph.
Thursday Night
Mostly cloudy, with a low around 8. Light and variable wind becoming north 10 to 15 mph in the evening. Winds could gust as high as 25 mph.
Friday
Mostly cloudy and cold, with a high near 14. North wind 11 to 15 mph, with gusts as high as 25 mph.
Friday Night
A 30 percent chance of snow after midnight. Cloudy, with a low around 3.
Saturday
Snow likely, mainly after noon. Cloudy and cold, with a high near 13. Chance of precipitation is 70%.
Saturday Night
Snow, mainly before midnight. Low around 8. Chance of precipitation is 80%.
Sunday
A 40 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 19.
Sunday Night
Partly cloudy, with a low around -1.
Monday
Sunny and cold, with a high near 17.
Monday Night
Mostly clear, with a low around 4.
Tuesday
Mostly sunny, with a high near 30.
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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:
1:36 pm CST Jan 21, 2026
Forecast Valid:
2pm CST Jan 21, 2026-6pm CST Jan 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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