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

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

41°F

5°C

Humidity 86%
Wind Speed NA
Barometer 30.30 in (1026.0 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 20 Apr 5:54 am CDT
Extended Forecast for

Weldon Spring Heights MO

  • Today

    Today: Sunny, with a high near 71. Calm wind becoming southeast around 6 mph in the morning.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. Southeast wind around 7 mph becoming southwest after midnight.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80. Southwest wind 7 to 15 mph, with gusts as high as 24 mph.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56. Southwest wind 7 to 9 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78. Southwest wind around 7 mph.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.

    Low: 61 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 74. Chance of precipitation is 80%.

    High: 74 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 71. Calm wind becoming southeast around 6 mph in the morning.
Tonight
Mostly clear, with a low around 51. Southeast wind around 7 mph becoming southwest after midnight.
Tuesday
Sunny, with a high near 80. Southwest wind 7 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 56. Southwest wind 7 to 9 mph.
Wednesday
Sunny, with a high near 78. Southwest wind around 7 mph.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Friday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 74. Chance of precipitation is 80%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 72.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 51.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring Heights MO
 38.7°N 90.68°W (Elev. 591 ft)
Last Update:
4:41 am CDT Apr 20, 2026
Forecast Valid:
5am CDT Apr 20, 2026-6pm CDT Apr 26, 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