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

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Fair

82°F

28°C

Humidity 74%
Wind Speed W 7 mph
Barometer 30.02 in (1015.0 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 2 Jul 1:51 am CDT
Extended Forecast for

Webster Groves MO

Extreme Heat Warning July 2, 02:42am until July 3, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 2, 02:42am until July 3, 10:00pm

    NOW until 10:00pm Fri

    Extreme Heat Warning

  • Overnight

    Low: 78 °F

    Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 96. Heat index values as high as 109. Calm wind becoming south 5 to 7 mph in the morning.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79. South wind 5 to 7 mph becoming calm after midnight.

    Low: 79 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming south 5 to 7 mph in the morning.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 77. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 77 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Independence Day

    Independence Day: A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 78. Southwest wind around 5 mph becoming calm.
Thursday
A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 96. Heat index values as high as 109. Calm wind becoming south 5 to 7 mph in the morning.
Thursday Night
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79. South wind 5 to 7 mph becoming calm after midnight.
Friday
A 20 percent chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming south 5 to 7 mph in the morning.
Friday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 77. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Independence Day
A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93.
Sunday Night
Partly cloudy, with a low around 74.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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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:
1:26 am CDT Jul 2, 2026
Forecast Valid:
2am CDT Jul 2, 2026-6pm CDT Jul 8, 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