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

86°F

30°C

Humidity 20%
Wind Speed S 10 mph
Barometer 30.00 in (1015.2 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 9 Oct 5:51 pm CDT
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: Increasing clouds, with a low around 59. South wind 3 to 6 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, with a high near 82. Southeast wind 3 to 7 mph.

    High: 82 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61. Southeast wind around 6 mph becoming light and variable after midnight.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 85. Calm wind becoming northwest around 5 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. Calm wind becoming south around 5 mph after midnight.

    Low: 65 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Clear
    then Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 59. South wind 3 to 6 mph.
Saturday
Mostly cloudy, with a high near 82. Southeast wind 3 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 61. Southeast wind around 6 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 85. Calm wind becoming northwest around 5 mph.
Sunday Night
Mostly clear, with a low around 65. Calm wind becoming south around 5 mph after midnight.
Columbus Day
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Sunny, with a high near 90.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 71.
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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:
5:41 pm CDT Oct 9, 2026
Forecast Valid:
6pm CDT Oct 9, 2026-6pm CDT Oct 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