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

85°F

29°C

Humidity 37%
Wind Speed SW 13 G 26 mph
Barometer 29.87 in (1010.9 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 30 Mar 2:54 pm CDT
Extended Forecast for

Weldon Spring MO

  • Tonight

    Tonight: Partly cloudy, with a low around 64. South wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 85. Southwest wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then showers between 1am and 2am, then rain after 2am. Low around 58. Southwest wind 7 to 9 mph becoming west after midnight. Chance of precipitation is 80%.

    Low: 58 °F

    Chance
    T-storms then
    Showers

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 74. Southeast wind 6 to 9 mph. Chance of precipitation is 80%.

    High: 74 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain and thunderstorms before 1am, then rain likely between 1am and 4am, then rain likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 62. South wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    Low: 62 °F

    Rain Likely

  • Thursday

    Thursday: Rain and possibly a thunderstorm. High near 79. Chance of precipitation is 90%.

    High: 79 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Rain Likely

  • Friday

    Friday: A chance of rain, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.

    High: 81 °F

    Chance Rain

  • Friday Night

    Friday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Chance
    T-storms then
    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 64. South wind 11 to 14 mph, with gusts as high as 24 mph.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 85. Southwest wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 1am, then showers between 1am and 2am, then rain after 2am. Low around 58. Southwest wind 7 to 9 mph becoming west after midnight. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm. High near 74. Southeast wind 6 to 9 mph. Chance of precipitation is 80%.
Wednesday Night
A chance of rain and thunderstorms before 1am, then rain likely between 1am and 4am, then rain likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 62. South wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Thursday
Rain and possibly a thunderstorm. High near 79. Chance of precipitation is 90%.
Thursday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Friday
A chance of rain, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Friday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Saturday
Rain likely and possibly a thunderstorm before 1pm, then a chance of rain. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Sunday
A 20 percent chance of rain. Mostly sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 65.
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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:
2:57 pm CDT Mar 30, 2026
Forecast Valid:
3pm CDT Mar 30, 2026-6pm CDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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