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

82°F

28°C

Humidity 79%
Wind Speed S 7 mph
Barometer 30.00 in (1014.8 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 26 Jul 7:54 am CDT
Extended Forecast for

Weldon Spring Heights MO

Extreme Heat Warning July 26, 08:50am until July 29, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 26, 08:50am until July 29, 07:00pm

    NOW until 7:00pm Tue

    Extreme Heat Warning

  • Today

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 76. South wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 103. Southwest wind 3 to 6 mph.

    High: 93 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 76. Light south wind.

    Low: 76 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 96. Calm wind becoming west around 5 mph in the afternoon.

    High: 96 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.

    Low: 75 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 93. Heat index values as high as 106. South wind around 7 mph.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 76. South wind 3 to 5 mph. Chance of precipitation is 30%.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 103. Southwest wind 3 to 6 mph.
Sunday Night
Mostly cloudy, with a low around 76. Light south wind.
Monday
Mostly sunny, with a high near 96. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Sunny and hot, with a high near 97.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 71.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Weldon Spring Heights MO
 38.7°N 90.71°W (Elev. 597 ft)
Last Update:
5:51 am CDT Jul 26, 2025
Forecast Valid:
8am CDT Jul 26, 2025-6pm CDT Aug 1, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation