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

51°F

11°C

Humidity 83%
Wind Speed Calm
Barometer 29.89 in (1011.6 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 Mar 2:54 am CDT
Extended Forecast for

3 Miles E Chesterfield MO

  • Overnight

    Overnight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Southwest wind 3 to 8 mph.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 4pm. Increasing clouds, with a high near 90. Southwest wind 8 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph.

    High: 90 °F

    Sunny then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 40. Breezy, with a north wind 10 to 20 mph, with gusts as high as 32 mph.

    Low: 40 °F

    Slight Chance
    Showers and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 52. Calm wind.
Saturday
Sunny, with a high near 91. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 66. Southwest wind 3 to 8 mph.
Sunday
A 20 percent chance of showers after 4pm. Increasing clouds, with a high near 90. Southwest wind 8 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph.
Sunday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 40. Breezy, with a north wind 10 to 20 mph, with gusts as high as 32 mph.
Monday
Mostly sunny, with a high near 58.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 63.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 45.
Wednesday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 73.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 56.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 83.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 47.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Chesterfield MO
 38.65°N 90.51°W (Elev. 597 ft)
Last Update:
2:46 am CDT Mar 21, 2026
Forecast Valid:
3am CDT Mar 21, 2026-6pm CDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation