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

57°F

14°C

Humidity 72%
Wind Speed SW 12 G 23 mph
Barometer 29.85 in (1010.9 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 9 Mar 8:54 am CDT
Extended Forecast for

Chesterfield MO

  • Today

    Today: Mostly sunny, with a high near 82. South wind 9 to 13 mph, with gusts as high as 26 mph.

    High: 82 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. Southwest wind 7 to 9 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers, mainly after 4pm. Increasing clouds, with a high near 84. South wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 84 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 54. South wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

    Low: 54 °F

    Showers
    Likely then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Temperature rising to near 63 by 10am, then falling to around 50 during the remainder of the day. Southwest wind 13 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%.

    High: 63 °F⇓

    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 82. South wind 9 to 13 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 60. Southwest wind 7 to 9 mph.
Tuesday
A 40 percent chance of showers, mainly after 4pm. Increasing clouds, with a high near 84. South wind 6 to 13 mph, with gusts as high as 23 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 54. South wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm. Temperature rising to near 63 by 10am, then falling to around 50 during the remainder of the day. Southwest wind 13 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly cloudy, with a low around 46.
Friday
Partly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 50.
Sunday
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield MO
 38.65°N 90.6°W (Elev. 466 ft)
Last Update:
8:26 am CDT Mar 9, 2026
Forecast Valid:
9am CDT Mar 9, 2026-6pm CDT Mar 15, 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