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.

Light Rain

80°F

27°C

Humidity 69%
Wind Speed SE 8 mph
Barometer 29.95 in (1012.8 mb)
Dewpoint 69°F (21°C)
Visibility 6.00 mi
Heat Index83°F (28°C)
Last update 20 Jul 8:51 am CDT
Extended Forecast for

Creve Coeur MO

Heat Advisory July 20, 09:00am until July 21, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 20, 09:00am until July 21, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Today

    High: 94 °F

    Patchy Smoke
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 79. Calm wind becoming southwest around 6 mph after midnight.

    Low: 79 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 11am. Mostly sunny, with a high near 96. Heat index values as high as 105. Northwest wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 96 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71. North wind 6 to 10 mph.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. North wind 6 to 9 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Patchy smoke before noon. Mostly sunny, with a high near 94. Heat index values as high as 105. Calm wind.
Tonight
Mostly clear, with a low around 79. Calm wind becoming southwest around 6 mph after midnight.
Tuesday
A 20 percent chance of showers and thunderstorms before 11am. Mostly sunny, with a high near 96. Heat index values as high as 105. Northwest wind 6 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 71. North wind 6 to 10 mph.
Wednesday
Sunny, with a high near 85. North wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 67.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 68.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Creve Coeur MO
 38.67°N 90.46°W (Elev. 597 ft)
Last Update:
6:16 am CDT Jul 20, 2026
Forecast Valid:
9am CDT Jul 20, 2026-6pm CDT Jul 26, 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