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

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

67°F

19°C

Humidity 79%
Wind Speed Vrbl 3 mph
Barometer 29.90 in (1011.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 17 Apr 7:54 am CDT
Extended Forecast for

Chesterfield MO

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 87. South wind 6 to 14 mph, with gusts as high as 25 mph.

    High: 87 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms. Some of the storms could produce heavy rainfall. Low around 47. South wind 10 to 13 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 100%.

    Low: 47 °F

    Heavy Rain

  • Saturday

    Saturday: A 40 percent chance of showers, mainly before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 59. Northwest wind around 15 mph, with gusts as high as 26 mph.

    High: 59 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Clear, with a low around 40. West wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 40 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 87. South wind 6 to 14 mph, with gusts as high as 25 mph.
Tonight
Showers and thunderstorms. Some of the storms could produce heavy rainfall. Low around 47. South wind 10 to 13 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 100%.
Saturday
A 40 percent chance of showers, mainly before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 59. Northwest wind around 15 mph, with gusts as high as 26 mph.
Saturday Night
Clear, with a low around 40. West wind 5 to 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 68. West wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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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:
8:01 am CDT Apr 17, 2026
Forecast Valid:
8am CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation