Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

68°F

20°C

Humidity 78%
Wind Speed E 5 mph
Barometer 30.11 in (1019.1 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 31 Aug 1:54 am CDT
Extended Forecast for

Chesterfield MO

  • Overnight

    Overnight: Mostly cloudy, with a low around 65. Light east wind.

    Low: 65 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 82. East wind 3 to 8 mph.

    High: 82 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 60. Northeast wind 3 to 7 mph.

    Low: 60 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: Partly sunny, with a high near 79. East wind 3 to 6 mph.

    High: 79 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers.  Partly sunny, with a high near 79.

    High: 79 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 81.

    High: 81 °F

    Sunny then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 65. Light east wind.
Sunday
Partly sunny, with a high near 82. East wind 3 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 60. Northeast wind 3 to 7 mph.
Labor Day
Partly sunny, with a high near 79. East wind 3 to 6 mph.
Monday Night
Mostly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 49.
Thursday
Sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield MO
 38.67°N 90.57°W (Elev. 446 ft)
10:21 pm CDT Aug 30, 2025
2am CDT Aug 31, 2025-6pm CDT Sep 6, 2025
 
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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