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

83°F

28°C

Humidity 37%
Wind Speed Calm
Barometer 30.19 in (1021.6 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 14 Oct 3:54 pm CDT
Extended Forecast for

Chesterfield MO

  • Tonight

    Tonight: Mostly clear, with a low around 59. Light east wind.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. Light southeast wind.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83. Southeast wind 5 to 9 mph.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 60. Southeast wind around 7 mph.

    Low: 60 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 85.

    High: 85 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Clear
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 76. Chance of precipitation is 70%.

    High: 76 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 51. Chance of precipitation is 50%.

    Low: 51 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 59. Light east wind.
Wednesday
Mostly sunny, with a high near 84. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 61. Light southeast wind.
Thursday
Sunny, with a high near 83. Southeast wind 5 to 9 mph.
Thursday Night
Partly cloudy, with a low around 60. Southeast wind around 7 mph.
Friday
Partly sunny, with a high near 85.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 76. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 51. Chance of precipitation is 50%.
Sunday
A 20 percent chance of showers before 1pm. Sunny, with a high near 68.
Sunday Night
Clear, with a low around 47.
Monday
Sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 53.
Tuesday
A 20 percent chance of showers. Sunny, with a high near 76.
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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:
4:16 pm CDT Oct 14, 2025
Forecast Valid:
4pm CDT Oct 14, 2025-6pm CDT Oct 21, 2025
 
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