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

75°F

24°C

Humidity 26%
Wind Speed S 12 G 22 mph
Barometer 30.10 in (1019.0 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 8 Apr 1:54 pm CDT
Extended Forecast for

Weldon Spring MO

  • This Afternoon

    This Afternoon: Sunny, with a high near 76. South wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. South wind 7 to 10 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Southwest wind 7 to 10 mph.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 59. South wind 7 to 10 mph.

    Low: 59 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. Southwest wind 7 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 75. Chance of precipitation is 40%.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79.

    High: 79 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 76. South wind 9 to 14 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 55. South wind 7 to 10 mph.
Thursday
Sunny, with a high near 80. Southwest wind 7 to 10 mph.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 59. South wind 7 to 10 mph.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. Southwest wind 7 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Saturday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 75. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 61.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79.
Sunday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 81. Chance of precipitation is 60%.
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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:
2:41 pm CDT Apr 8, 2026
Forecast Valid:
2pm CDT Apr 8, 2026-6pm CDT Apr 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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