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.

A Few Clouds

78°F

26°C

Humidity 48%
Wind Speed S 16 G 24 mph
Barometer 29.77 in (1007.4 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 9 Mar 1:51 pm CDT
Extended Forecast for

Lambert-St. Louis International Airport MO

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 80. South wind around 15 mph, with gusts as high as 26 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 62. South wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. South wind 7 to 15 mph, with gusts as high as 26 mph.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10pm. Low around 54. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.

    Low: 54 °F

    Showers
    Likely then
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Temperature rising to near 64 by 10am, then falling to around 49 during the remainder of the day. Southwest wind 13 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%.

    High: 64 °F⇓

    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 80. South wind around 15 mph, with gusts as high as 26 mph.
Tonight
Partly cloudy, with a low around 62. South wind 8 to 11 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 82. South wind 7 to 15 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10pm. Low around 54. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm. Temperature rising to near 64 by 10am, then falling to around 49 during the remainder of the day. Southwest wind 13 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 46.
Friday
Partly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 52.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.4°W (Elev. 597 ft)
Last Update:
1:26 pm CDT Mar 9, 2026
Forecast Valid:
2pm CDT Mar 9, 2026-6pm CDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation