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

75°F

24°C

Humidity 33%
Wind Speed Vrbl 6 mph
Barometer 30.18 in (1021.3 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 11 May 11:51 am CDT
Extended Forecast for

Saint Louis MO

  • Today

    Today: Mostly sunny, with a high near 80. East wind 6 to 10 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 61. East wind 3 to 7 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Monday

    Monday: A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 74. Light east wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely then
    T-storms
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 61. East wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79. Light southeast wind.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 80. East wind 6 to 10 mph.
Tonight
Increasing clouds, with a low around 61. East wind 3 to 7 mph.
Monday
A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 74. Light east wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 61. East wind around 5 mph becoming calm in the evening.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79. Light southeast wind.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Thursday Night
Partly cloudy, with a low around 66.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
Last Update:
5:37 am CDT May 11, 2025
Forecast Valid:
11am CDT May 11, 2025-6pm CDT May 17, 2025
 
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