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

74°F

23°C

Humidity 71%
Wind Speed NW 3 mph
Barometer 30.05 in (1016.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 20 Sep 8:51 am CDT
Extended Forecast for

Saint Louis MO

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 88. Calm wind becoming south around 6 mph in the afternoon.

    High: 88 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 69. Southeast wind 3 to 5 mph.

    Low: 69 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 86. Southwest wind 6 to 9 mph.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 68. South wind around 6 mph. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 83. South wind 5 to 8 mph. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely then
    T-storms
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 88. Calm wind becoming south around 6 mph in the afternoon.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 69. Southeast wind 3 to 5 mph.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 86. Southwest wind 6 to 9 mph.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Mostly cloudy, with a low around 68. South wind around 6 mph. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 83. South wind 5 to 8 mph. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
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. Mostly cloudy, with a high near 74.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76.
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:
5:56 am CDT Sep 20, 2025
Forecast Valid:
9am CDT Sep 20, 2025-6pm CDT Sep 26, 2025
 
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