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.

Overcast

56°F

13°C

Humidity 97%
Wind Speed SW 5 mph
Barometer 29.76 in (1007.4 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 9 May 3:54 am CDT
Extended Forecast for

Weldon Spring Heights MO

Dense Fog Advisory May 9, 04:09am until May 9, 08:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory May 9, 04:09am until May 9, 08:00am

    NOW until 8:00am Sat

    Dense Fog Advisory

  • Today

    High: 81 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Scattered showers and thunderstorms before 2am, then isolated showers after 4am. Increasing clouds, with a low around 55. Light and variable wind becoming north around 6 mph after midnight. Chance of precipitation is 30%.

    Low: 55 °F

    Scattered
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 68. North wind 6 to 8 mph.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. North wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 72. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 81. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.
Tonight
Scattered showers and thunderstorms before 2am, then isolated showers after 4am. Increasing clouds, with a low around 55. Light and variable wind becoming north around 6 mph after midnight. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 68. North wind 6 to 8 mph.
Sunday Night
Mostly clear, with a low around 44. North wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 72. Calm wind becoming northwest around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 81.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 57.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Clear, with a low around 51.
Thursday
Sunny, with a high near 79.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 58.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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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:
3:16 am CDT May 9, 2026
Forecast Valid:
4am CDT May 9, 2026-6pm CDT May 15, 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