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.

Partly Cloudy

81°F

27°C

Humidity 42%
Wind Speed SW 12 G 17 mph
Barometer 29.69 in (1004.1 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 22 Mar 10:51 am CDT
Extended Forecast for

Lambert-St. Louis International Airport MO

  • Today

    Today: Partly sunny, with a high near 90. West wind 9 to 16 mph becoming north in the afternoon.

    High: 90 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 37. Breezy, with a north wind 13 to 22 mph, with gusts as high as 37 mph.

    Low: 37 °F

    Slight Chance
    T-storms and
    Breezy then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 56. Northeast wind around 10 mph.

    High: 56 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39. East wind around 7 mph.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. Southeast wind 7 to 9 mph.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.

    Low: 61 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Partly sunny, with a high near 90. West wind 9 to 16 mph becoming north in the afternoon.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 37. Breezy, with a north wind 13 to 22 mph, with gusts as high as 37 mph.
Monday
Mostly sunny, with a high near 56. Northeast wind around 10 mph.
Monday Night
Mostly cloudy, with a low around 39. East wind around 7 mph.
Tuesday
Mostly sunny, with a high near 66. Southeast wind 7 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 44.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 54.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.37°W (Elev. 551 ft)
Last Update:
8:26 am CDT Mar 22, 2026
Forecast Valid:
10am CDT Mar 22, 2026-6pm CDT Mar 28, 2026
 
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