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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

27°C

81°F

Humidity 44%
Wind Speed N 17 km/h
Barometer 1018.0 mb (30.07 in)
Dewpoint 14°C (57°F)
Visibility 16 km
Heat Index27°C (81°F)
Last update 13 Sep 6:53 pm CDT
Extended Forecast for

Crestwood MO

  • Tonight

    Tonight: A slight chance of showers between 8pm and 10pm. Partly cloudy, with a low around 18. Northeast wind around 11 km/h. Chance of precipitation is 20%.

    Low: 18 °C

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: A slight chance of showers between 11am and 1pm. Sunny, with a high near 31. East wind around 14 km/h. Chance of precipitation is 20%.

    High: 31 °C

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 24. Southeast wind 11 to 16 km/h.

    Low: 24 °C

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 37. Heat index values as high as 41. Southwest wind 8 to 13 km/h.

    High: 37 °C

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 23. North wind 5 to 8 km/h becoming southeast after midnight.

    Low: 23 °C

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 35.

    High: 35 °C

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24.

    Low: 24 °C

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 35. Chance of precipitation is 20%.

    High: 35 °C

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 23.

    Low: 23 °C

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers between 8pm and 10pm. Partly cloudy, with a low around 18. Northeast wind around 11 km/h. Chance of precipitation is 20%.
Monday
A slight chance of showers between 11am and 1pm. Sunny, with a high near 31. East wind around 14 km/h. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 24. Southeast wind 11 to 16 km/h.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 37. Heat index values as high as 41. Southwest wind 8 to 13 km/h.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 23. North wind 5 to 8 km/h becoming southeast after midnight.
Wednesday
Mostly sunny, with a high near 35.
Wednesday Night
Partly cloudy, with a low around 24.
Thursday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 35. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 23.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 33.
Friday Night
Partly cloudy, with a low around 22.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 32.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 20.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Crestwood MO
 38.56°N 90.38°W (Elev. 597 m)
Last Update:
5:56 pm CDT Sep 13, 2026
Forecast Valid:
7pm CDT Sep 13, 2026-6pm CDT Sep 20, 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