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.

Mostly Cloudy

67°F

19°C

Humidity 66%
Wind Speed S 10 G 20 mph
Barometer 29.99 in (1014.5 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Oct 8:51 am CDT
Extended Forecast for

Saint Louis MO

  • Today

    Today: Partly sunny, with a high near 83. South wind 7 to 10 mph.

    High: 83 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 65. South wind around 8 mph.

    Low: 65 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 79. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 79 °F

    Showers
    Likely then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 51. Southwest wind 9 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%.

    Low: 51 °F

    T-storms then
    Showers

  • Sunday

    Sunday: Sunny, with a high near 65. Northwest wind 14 to 16 mph, with gusts as high as 28 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 83. South wind 7 to 10 mph.
Tonight
Partly cloudy, with a low around 65. South wind around 8 mph.
Saturday
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 79. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 51. Southwest wind 9 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%.
Sunday
Sunny, with a high near 65. Northwest wind 14 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Clear, with a low around 46.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 70.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 68.
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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:
6:21 am CDT Oct 17, 2025
Forecast Valid:
9am CDT Oct 17, 2025-6pm CDT Oct 23, 2025
 
Forecast Discussion
 
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Additional Resources

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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