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.

A Few Clouds

68°F

20°C

Humidity 84%
Wind Speed SW 7 mph
Barometer 29.97 in (1014.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 21 Sep 5:51 am CDT
Extended Forecast for

Lambert-St. Louis International Airport MO

  • Today

    Today: A slight chance of showers before 1pm, then a chance of showers and thunderstorms after 4pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 85. Southwest wind 5 to 8 mph. Chance of precipitation is 30%.

    High: 85 °F

    Patchy Fog
    then Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 1am, then showers and possibly a thunderstorm after 1am. Low around 67. West wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 80%.

    Low: 67 °F

    T-storms

  • Monday

    Monday: Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 79. Southeast wind 6 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 80%.

    High: 79 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 3 to 7 mph. Chance of precipitation is 50%.

    Low: 66 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. South wind 3 to 7 mph. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers

Detailed Forecast

Today
A slight chance of showers before 1pm, then a chance of showers and thunderstorms after 4pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 85. Southwest wind 5 to 8 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms, mainly before 1am, then showers and possibly a thunderstorm after 1am. Low around 67. West wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 80%.
Monday
Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 79. Southeast wind 6 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 80%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 3 to 7 mph. Chance of precipitation is 50%.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. South wind 3 to 7 mph. Chance of precipitation is 50%.
Tuesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 40%.
Thursday Night
A 30 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 60.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.37°W (Elev. 551 ft)
Last Update:
5:41 am CDT Sep 21, 2025
Forecast Valid:
6am CDT Sep 21, 2025-6pm CDT Sep 27, 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