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

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

80°F

27°C

Humidity 74%
Wind Speed Calm
Barometer 29.88 in (1010.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 9 Jul 7:51 pm CDT
Extended Forecast for

Webster Groves MO

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly between 1am and 5am. Mostly cloudy, with a low around 73. South wind 3 to 5 mph. Chance of precipitation is 70%.

    Low: 73 °F

    T-storms
    Likely

  • Friday

    Friday: Scattered showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 90. Heat index values as high as 102. Light and variable wind becoming west around 6 mph in the morning. Chance of precipitation is 30%.

    High: 90 °F

    Scattered
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly after 1am. Increasing clouds, with a low around 72. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.

    Low: 72 °F

    T-storms
    Likely

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.

    High: 86 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. North wind around 6 mph becoming calm in the evening.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly between 1am and 5am. Mostly cloudy, with a low around 73. South wind 3 to 5 mph. Chance of precipitation is 70%.
Friday
Scattered showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 90. Heat index values as high as 102. Light and variable wind becoming west around 6 mph in the morning. Chance of precipitation is 30%.
Friday Night
Showers and thunderstorms likely, mainly after 1am. Increasing clouds, with a low around 72. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. North wind around 6 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 70.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
Sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Webster Groves MO
 38.6°N 90.35°W (Elev. 482 ft)
Last Update:
6:06 pm CDT Jul 9, 2026
Forecast Valid:
8pm CDT Jul 9, 2026-6pm CDT Jul 16, 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