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

80°F

27°C

Humidity 74%
Wind Speed S 8 mph
Barometer 30.03 in (1015.2 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 22 Jun 3:51 am CDT
Extended Forecast for

Earth City MO

Extreme Heat Warning June 22, 04:37am until June 24, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 22, 04:37am until June 24, 09:00pm

    NOW until 9:00pm Tue

    Extreme Heat Warning

  • Today

    High: 95 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 78. South wind 6 to 9 mph.

    Low: 78 °F

    Clear

  • Monday

    Monday: Increasing clouds, with a high near 95. Heat index values as high as 104. Southwest wind 6 to 9 mph.

    High: 95 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. South wind 3 to 6 mph.

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 96. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 96 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76.

    Low: 76 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 95. Heat index values as high as 103. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 78. South wind 6 to 9 mph.
Monday
Increasing clouds, with a high near 95. Heat index values as high as 104. Southwest wind 6 to 9 mph.
Monday Night
Partly cloudy, with a low around 77. South wind 3 to 6 mph.
Tuesday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 96. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76.
Wednesday
Mostly sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny, with a high near 96.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Earth City MO
 38.78°N 90.48°W (Elev. 440 ft)
Last Update:
4:21 am CDT Jun 22, 2025
Forecast Valid:
4am CDT Jun 22, 2025-6pm CDT Jun 28, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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