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

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

65°F

18°C

Humidity 36%
Wind Speed S 10 G 21 mph
Barometer 30.02 in (1016.6 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 16 Feb 12:51 pm CST
Extended Forecast for

Lambert-St. Louis International Airport MO

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 65. South wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. South wind 7 to 10 mph.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65. South wind 8 to 16 mph, with gusts as high as 26 mph.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 55. South wind 15 to 17 mph, with gusts as high as 29 mph.

    Low: 55 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Sunny, with a high near 72. West wind 8 to 14 mph, with gusts as high as 24 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain. Mostly sunny, with a high near 72.

    High: 72 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny
    then

Detailed Forecast

Washington's Birthday
Mostly sunny, with a high near 65. South wind 8 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 45. South wind 7 to 10 mph.
Tuesday
Mostly cloudy, with a high near 65. South wind 8 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 55. South wind 15 to 17 mph, with gusts as high as 29 mph.
Wednesday
Sunny, with a high near 72. West wind 8 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
A 40 percent chance of rain. Mostly sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Partly sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 31.
Saturday
A slight chance of rain and snow. Mostly sunny, with a high near 48. Chance of precipitation is 20%.
Saturday Night
A slight chance of rain and snow. Partly cloudy, with a low around 29. Chance of precipitation is 20%.
Sunday
High near 49.
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:
1:31 pm CST Feb 16, 2026
Forecast Valid:
1pm CST Feb 16, 2026-6pm CST Feb 22, 2026
 
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