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

72°F

22°C

Humidity 87%
Wind Speed S 6 mph
Barometer 29.94 in (1012.9 mb)
Dewpoint 68°F (20°C)
Visibility 8.00 mi
Last update 23 Sep 8:51 am CDT
Extended Forecast for

Saint Louis MO

  • Today

    Today: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 80. South wind 3 to 8 mph. Chance of precipitation is 80%.

    High: 80 °F

    Cloudy then
    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 4am, then showers likely. Patchy fog after 2am. Low around 67. Light and variable wind becoming northeast 5 to 7 mph after midnight. Chance of precipitation is 80%.

    Low: 67 °F

    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 75. North wind around 9 mph. Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. North wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers. Mostly sunny, with a high near 77. Northwest wind 6 to 9 mph.

    High: 77 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 80. South wind 3 to 8 mph. Chance of precipitation is 80%.
Tonight
Showers and possibly a thunderstorm before 4am, then showers likely. Patchy fog after 2am. Low around 67. Light and variable wind becoming northeast 5 to 7 mph after midnight. Chance of precipitation is 80%.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 75. North wind around 9 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. North wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 77. Northwest wind 6 to 9 mph.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 81.
Friday Night
Clear, with a low around 59.
Saturday
Sunny, with a high near 85.
Saturday Night
Clear, with a low around 59.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 59.
Monday
Sunny, with a high near 84.
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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:
8:26 am CDT Sep 23, 2025
Forecast Valid:
9am CDT Sep 23, 2025-6pm CDT Sep 29, 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