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.

Rain Fog/Mist

71°F

22°C

Humidity 94%
Wind Speed S 12 mph
Barometer 29.95 in (1013.2 mb)
Dewpoint 69°F (21°C)
Visibility 4.00 mi
Last update 31 Jul 10:51 am CDT
Extended Forecast for

Saint Louis MO

Flood Advisory until July 31, 12:00pm
Click here for hazard details and duration
Flood Advisory
  •  
    Flood Advisory until July 31, 12:00pm

    NOW until 12:00pm Fri

    Flood Advisory

  • Today

    High: 84 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 2am. Low around 71. South wind 8 to 11 mph becoming west after midnight. Chance of precipitation is 90%.

    Low: 71 °F

    T-storms then
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. West wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    High: 77 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. North wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers. Partly sunny, with a high near 81. North wind 11 to 13 mph, with gusts as high as 22 mph.

    High: 81 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after 1pm. Sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms, mainly between 1pm and 3pm. Mostly cloudy, with a high near 84. South wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Tonight
Showers and thunderstorms, mainly before 2am. Low around 71. South wind 8 to 11 mph becoming west after midnight. Chance of precipitation is 90%.
Saturday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. West wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. North wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 81. North wind 11 to 13 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 67.
Monday
A 20 percent chance of showers after 1pm. Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 67.
Tuesday
A 20 percent chance of showers after 1pm. Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Mostly sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
Last Update:
9:31 am CDT Jul 31, 2026
Forecast Valid:
11am CDT Jul 31, 2026-6pm CDT Aug 6, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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