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

69°F

21°C

Humidity 73%
Wind Speed S 14 mph
Barometer 29.83 in (1009.3 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 9 Mar 10:51 pm CDT
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: Mostly clear, with a low around 62. South wind 6 to 8 mph.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 83. South wind 6 to 15 mph, with gusts as high as 26 mph.

    High: 83 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 55. Southwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 1pm, then showers likely. Temperature falling to around 51 by 5pm. Southwest wind 13 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%.

    High: 69 °F⇓

    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 35. Northwest wind 6 to 15 mph, with gusts as high as 25 mph.

    Low: 35 °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 45.

    Low: 45 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 62. South wind 6 to 8 mph.
Tuesday
Increasing clouds, with a high near 83. South wind 6 to 15 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 55. Southwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.
Wednesday
Showers and possibly a thunderstorm before 1pm, then showers likely. Temperature falling to around 51 by 5pm. Southwest wind 13 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, with a low around 35. Northwest wind 6 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 45.
Friday
Mostly cloudy, with a high near 65.
Friday Night
Mostly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 67.
Sunday Night
A chance of rain and snow. Partly cloudy, with a low around 29. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.62°N 90.23°W (Elev. 489 ft)
Last Update:
11:41 pm CDT Mar 9, 2026
Forecast Valid:
11pm CDT Mar 9, 2026-6pm CDT Mar 16, 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