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.

Mostly Cloudy

66°F

19°C

Humidity 63%
Wind Speed N 13 mph
Barometer 30.26 in (1024.2 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 10 Apr 4:54 pm CDT
Extended Forecast for

Weldon Spring MO

  • Tonight

    Tonight: A slight chance of showers before 1am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 52. East wind 3 to 7 mph. Chance of precipitation is 30%.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before 11am. Mostly cloudy, with a high near 73. East wind 6 to 8 mph. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61. Southeast wind around 8 mph.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 80. South wind 9 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 66 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 86. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers before 1am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 52. East wind 3 to 7 mph. Chance of precipitation is 30%.
Saturday
Showers and thunderstorms likely, mainly before 11am. Mostly cloudy, with a high near 73. East wind 6 to 8 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 61. Southeast wind around 8 mph.
Sunday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 80. South wind 9 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Monday
A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring MO
 38.72°N 90.65°W (Elev. 584 ft)
Last Update:
2:46 pm CDT Apr 10, 2026
Forecast Valid:
5pm CDT Apr 10, 2026-6pm CDT Apr 17, 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