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.

A Few Clouds

74°F

23°C

Humidity 71%
Wind Speed S 8 G 18 mph
Barometer 29.98 in (1014.4 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 3 Apr 9:54 am CDT
Extended Forecast for

Weldon Spring MO

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 3pm. Partly sunny, with a high near 81. South wind 7 to 14 mph, with gusts as high as 25 mph.

    High: 81 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 56. South wind around 11 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%.

    Low: 56 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 60. West wind 9 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 3pm. Partly sunny, with a high near 81. South wind 7 to 14 mph, with gusts as high as 25 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 56. South wind around 11 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%.
Saturday
Showers likely and possibly a thunderstorm before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 60. West wind 9 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 39. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 59. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 39.
Monday
Sunny, with a high near 60.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 76.
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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:
8:31 am CDT Apr 3, 2026
Forecast Valid:
10am CDT Apr 3, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation