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

51°F

11°C

Humidity 86%
Wind Speed E 7 mph
Barometer 30.32 in (1026.7 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 11 Apr 5:54 am CDT
Extended Forecast for

Weldon Spring MO

  • Today

    Today: A slight chance of showers before 10am, then a slight chance of showers after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 73. East wind 3 to 8 mph. Chance of precipitation is 20%.

    High: 73 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 61. Southeast wind around 8 mph.

    Low: 61 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. South wind 8 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    High: 81 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

Detailed Forecast

Today
A slight chance of showers before 10am, then a slight chance of showers after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 73. East wind 3 to 8 mph. Chance of precipitation is 20%.
Tonight
A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 61. Southeast wind around 8 mph.
Sunday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. South wind 8 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 79. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring MO
 38.72°N 90.65°W (Elev. 584 ft)
Last Update:
5:31 am CDT Apr 11, 2026
Forecast Valid:
6am CDT Apr 11, 2026-6pm CDT Apr 17, 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