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.

Overcast

63°F

17°C

Humidity 87%
Wind Speed NW 15 G 24 mph
Barometer 29.83 in (1009.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 22 Jun 3:51 am CDT
Extended Forecast for

Lambert-St. Louis International Airport MO

  • Today

    Today: Mostly cloudy, with a high near 75. North wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 75 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 61. North wind 5 to 7 mph becoming calm in the evening.

    Low: 61 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 65. East wind 3 to 5 mph.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. South wind around 6 mph.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67.

    Low: 67 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Mostly cloudy, with a high near 75. North wind 8 to 11 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 61. North wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 65. East wind 3 to 5 mph.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. South wind around 6 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Sunday
Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lambert-St. Louis International Airport MO
 38.78°N 90.37°W (Elev. 587 ft)
Last Update:
4:56 am CDT Jun 22, 2026
Forecast Valid:
5am CDT Jun 22, 2026-6pm CDT Jun 28, 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