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.

Mostly Cloudy

96°F

36°C

Humidity 56%
Wind Speed W 13 mph
Barometer 29.87 in (1009.9 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index113°F (45°C)
Last update 26 Jul 5:51 pm CDT
Extended Forecast for

2 Miles SSW Saint Louis MO

Extreme Heat Warning July 26, 06:39pm until July 27, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 26, 06:39pm until July 27, 09:00pm

    NOW until 9:00pm Mon

    Extreme Heat Warning

  • Tonight

    Low: 79 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 98. Heat index values as high as 111. Southwest wind 3 to 8 mph.

    High: 98 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 81. Southwest wind 5 to 7 mph.

    Low: 81 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Heat index values as high as 105. North wind 6 to 9 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72. Northeast wind 3 to 8 mph.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 79. Light and variable wind.
Monday
Sunny and hot, with a high near 98. Heat index values as high as 111. Southwest wind 3 to 8 mph.
Monday Night
Mostly clear, with a low around 81. Southwest wind 5 to 7 mph.
Tuesday
Sunny, with a high near 93. Heat index values as high as 105. North wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 72. Northeast wind 3 to 8 mph.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
Sunny, with a high near 90.
Thursday Night
A 30 percent chance of showers after 1am. The rain could be heavy at times. Partly cloudy, with a low around 72.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Saint Louis MO
 38.6°N 90.26°W (Elev. 515 ft)
Last Update:
6:16 pm CDT Jul 26, 2026
Forecast Valid:
6pm CDT Jul 26, 2026-6pm CDT Aug 2, 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