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.

Fog/Mist

67°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 30.02 in (1016.1 mb)
Dewpoint 67°F (19°C)
Visibility 6.00 mi
Last update 14 Oct 8:54 pm CDT
Extended Forecast for

Chesterfield MO

  • Tonight

    Tonight: Isolated showers, then scattered showers and thunderstorms after 3am. Cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 30%.

    Low: 68 °F

    Mostly Cloudy
    then
    Scattered
    Showers

  • Thursday

    Thursday: Showers and thunderstorms before 10am, then showers likely and possibly a thunderstorm between 10am and 11am, then a chance of showers and thunderstorms after 11am. High near 82. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 90%.

    High: 82 °F

    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 50. Northwest wind 7 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 50 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 56. Northwest wind around 17 mph, with gusts as high as 30 mph.

    High: 56 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. Northwest wind 7 to 14 mph, with gusts as high as 23 mph.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Isolated showers, then scattered showers and thunderstorms after 3am. Cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 30%.
Thursday
Showers and thunderstorms before 10am, then showers likely and possibly a thunderstorm between 10am and 11am, then a chance of showers and thunderstorms after 11am. High near 82. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 90%.
Thursday Night
A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 50. Northwest wind 7 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Friday
Mostly cloudy, with a high near 56. Northwest wind around 17 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 41. Northwest wind 7 to 14 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 61.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 43.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 80.
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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:
8:25 pm CDT Oct 14, 2026
Forecast Valid:
9pm CDT Oct 14, 2026-6pm CDT Oct 21, 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