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

44°F

7°C

Humidity 55%
Wind Speed Calm
Barometer 30.08 in (1018.7 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 13 Mar 11:51 pm CDT
Extended Forecast for

Des Peres MO

  • Overnight

    Overnight: Partly cloudy, with a low around 38. Light northeast wind.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65. East wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 55. South wind 9 to 14 mph, with gusts as high as 24 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 69. Breezy, with a south wind 16 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 90%.

    High: 69 °F

    Chance Rain
    and Breezy
    then Showers

  • Sunday Night

    Sunday Night: Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Low around 21. Blustery, with a west wind 18 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 21 °F

    Rain/Snow and
    Blustery

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 29. Blustery.

    High: 29 °F

    Chance Snow
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 38.

    High: 38 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 38. Light northeast wind.
Saturday
Mostly sunny, with a high near 65. East wind 6 to 11 mph, with gusts as high as 22 mph.
Saturday Night
Increasing clouds, with a low around 55. South wind 9 to 14 mph, with gusts as high as 24 mph.
Sunday
Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 69. Breezy, with a south wind 16 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Low around 21. Blustery, with a west wind 18 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 29. Blustery.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Sunny, with a high near 38.
Tuesday Night
A slight chance of snow before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 70.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Des Peres MO
 38.6°N 90.46°W (Elev. 574 ft)
Last Update:
11:46 pm CDT Mar 13, 2026
Forecast Valid:
12am CDT Mar 14, 2026-6pm CDT Mar 20, 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