National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

66°F

19°C

Humidity 87%
Wind Speed W 3 mph
Barometer 30.14 in (1020.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 23 Jun 9:54 pm CDT
Extended Forecast for

Weldon Spring Heights MO

  • Tonight

    Tonight: Partly cloudy, with a low around 63. Light southeast wind.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. Calm wind becoming south around 5 mph. Chance of precipitation is 30%.

    High: 82 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Mostly clear, with a low around 65. Calm wind. Chance of precipitation is 30%.

    Low: 65 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Patchy fog before 8am. Otherwise, increasing clouds, with a high near 84. Calm wind. Chance of precipitation is 70%.

    High: 84 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then T-storms
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 66. Light and variable wind. Chance of precipitation is 90%.

    Low: 66 °F

    Heavy Rain

  • Friday

    Friday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Showers then
    T-storms

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 63. Light southeast wind.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. Calm wind becoming south around 5 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Mostly clear, with a low around 65. Calm wind. Chance of precipitation is 30%.
Thursday
A slight chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Patchy fog before 8am. Otherwise, increasing clouds, with a high near 84. Calm wind. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 66. Light and variable wind. Chance of precipitation is 90%.
Friday
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 82. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 73.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 96.
Monday Night
Mostly clear, with a low around 76.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring Heights MO
 38.7°N 90.68°W (Elev. 591 ft)
Last Update:
9:26 pm CDT Jun 23, 2026
Forecast Valid:
10pm CDT Jun 23, 2026-6pm CDT Jun 30, 2026
 
Forecast Discussion
 
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Additional Resources

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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