National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

39°F

4°C

Humidity 65%
Wind Speed E 9 mph
Barometer 30.08 in (1018.8 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 14 Mar 4:54 am CDT
Extended Forecast for

Chesterfield MO

  • Today

    Today: Mostly sunny, with a high near 64. East wind 6 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 22 mph.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 56. South wind 10 to 14 mph, with gusts as high as 25 mph.

    Low: 56 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain, mainly after 1pm. High near 69. Breezy, with a south wind 18 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.

    High: 69 °F

    Breezy.
    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Low around 20. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 20 °F

    Rain/Snow and
    Blustery

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 28. Blustery, with a northwest wind 20 to 26 mph, with gusts as high as 41 mph.

    High: 28 °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 chance of snow before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 64. East wind 6 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 22 mph.
Tonight
Increasing clouds, with a low around 56. South wind 10 to 14 mph, with gusts as high as 25 mph.
Sunday
Rain, mainly after 1pm. High near 69. Breezy, with a south wind 18 to 21 mph, with gusts as high as 38 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. Low around 20. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 28. Blustery, with a northwest wind 20 to 26 mph, with gusts as high as 41 mph.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Sunny, with a high near 38.
Tuesday Night
A chance of snow before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield MO
 38.65°N 90.54°W (Elev. 600 ft)
Last Update:
4:41 am CDT Mar 14, 2026
Forecast Valid:
5am 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