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.

Overcast

73°F

23°C

Humidity 90%
Wind Speed Vrbl 5 mph
Barometer 30.01 in (1015.6 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 14 Oct 9:54 am CDT
Extended Forecast for

Chesterfield MO

  • Today

    Today: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, with a high near 78. North wind around 6 mph. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 66. North wind around 5 mph becoming light and variable. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm, mainly before noon, then a chance of showers and thunderstorms after noon. Patchy fog between 8am and 11am. High near 83. East wind 6 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 90%.

    High: 83 °F

    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 49. West wind 6 to 16 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%.

    Low: 49 °F

    Showers

  • Friday

    Friday: Mostly sunny, with a high near 60. Northwest wind around 18 mph, with gusts as high as 30 mph.

    High: 60 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, with a high near 78. North wind around 6 mph. Chance of precipitation is 70%.
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 66. North wind around 5 mph becoming light and variable. Chance of precipitation is 40%.
Thursday
Showers and possibly a thunderstorm, mainly before noon, then a chance of showers and thunderstorms after noon. Patchy fog between 8am and 11am. High near 83. East wind 6 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 49. West wind 6 to 16 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%.
Friday
Mostly sunny, with a high near 60. Northwest wind around 18 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 40.
Saturday
Sunny, with a high near 62.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield MO
 38.65°N 90.57°W (Elev. 512 ft)
Last Update:
5:06 am CDT Oct 14, 2026
Forecast Valid:
10am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
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