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.

Fair

75°F

24°C

Humidity 58%
Wind Speed S 14 G 24 mph
Barometer 29.79 in (1008.0 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 2 Apr 9:54 pm CDT
Extended Forecast for

Weldon Spring MO

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 59 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. Light and variable wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 50%.

    High: 81 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms before 4am, then showers and possibly a thunderstorm, mainly after 4am. Low around 53. South wind around 10 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%.

    Low: 53 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm. Mostly cloudy, with a steady temperature around 57. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 57 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. West wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 40.

    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

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. Light and variable wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 50%.
Friday Night
Showers and thunderstorms before 4am, then showers and possibly a thunderstorm, mainly after 4am. Low around 53. South wind around 10 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%.
Saturday
Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm. Mostly cloudy, with a steady temperature around 57. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 39. West wind 7 to 13 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 59.
Sunday Night
Clear, with a low around 40.
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 sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring MO
 38.72°N 90.65°W (Elev. 584 ft)
Last Update:
10:21 pm CDT Apr 2, 2026
Forecast Valid:
10pm CDT Apr 2, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation