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.

Partly Cloudy

82°F

28°C

Humidity 47%
Wind Speed S 12 G 21 mph
Barometer 29.89 in (1011.7 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 3 Apr 5:54 pm CDT
Extended Forecast for

Weldon Spring MO

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 56. South wind 7 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

    Low: 56 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers likely, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 53 by noon. West wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 58 °F⇓

    Showers
    Likely then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. Northwest wind 8 to 15 mph, with gusts as high as 23 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 40. West wind 3 to 6 mph.

    Low: 40 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 56. South wind 7 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Saturday
Showers likely, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 53 by noon. West wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 38. Northwest wind 8 to 15 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 59. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 40. West wind 3 to 6 mph.
Monday
Sunny, with a high near 62.
Monday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 37.
Tuesday
Mostly cloudy, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 73.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Friday
A 40 percent chance of showers and thunderstorms. Partly 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:
5:36 pm CDT Apr 3, 2026
Forecast Valid:
6pm CDT Apr 3, 2026-6pm CDT Apr 10, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation