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

65°F

18°C

Humidity 54%
Wind Speed Calm
Barometer 29.86 in (1010.8 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 20 Mar 8:54 pm CDT
Extended Forecast for

2 Miles E Chesterfield MO

  • Tonight

    Tonight: Mostly clear, with a low around 53. Light and variable wind.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 90. Light and variable wind becoming southwest around 6 mph in the morning.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 65. South wind 6 to 9 mph.

    Low: 65 °F

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 87. Southwest wind 9 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 87 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41. North wind 11 to 17 mph, with gusts as high as 28 mph.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 53. Light and variable wind.
Saturday
Sunny, with a high near 90. Light and variable wind becoming southwest around 6 mph in the morning.
Saturday Night
Clear, with a low around 65. South wind 6 to 9 mph.
Sunday
Mostly sunny, with a high near 87. Southwest wind 9 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 41. North wind 11 to 17 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 44.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
A 20 percent chance of rain. Sunny, with a high near 80.
Thursday Night
A 40 percent chance of rain. Partly cloudy, with a low around 42.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Chesterfield MO
 38.65°N 90.54°W (Elev. 600 ft)
Last Update:
7:31 pm CDT Mar 20, 2026
Forecast Valid:
9pm CDT Mar 20, 2026-6pm CDT Mar 27, 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