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.

Overcast with Haze

40°F

4°C

Humidity 83%
Wind Speed W 5 mph
Barometer 29.98 in (1015.6 mb)
Dewpoint 35°F (2°C)
Visibility 4.00 mi
Wind Chill36°F (2°C)
Last update 7 Dec 7:54 am CST
Extended Forecast for

Chesterfield MO

  • Today

    Today: A chance of sprinkles before 10am. Cloudy, with a temperature rising to near 40 by 10am, then falling to around 33 during the remainder of the day. West wind 5 to 11 mph becoming north in the afternoon. Winds could gust as high as 22 mph.

    High: 40 °F⇓

    Chance
    Sprinkles

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 35. Light and variable wind.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26. Light and variable wind becoming southwest 5 to 10 mph in the evening. Winds could gust as high as 20 mph.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53. Southwest wind around 11 mph, with gusts as high as 22 mph.

    High: 53 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow, mainly before noon. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.

    High: 39 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
A chance of sprinkles before 10am. Cloudy, with a temperature rising to near 40 by 10am, then falling to around 33 during the remainder of the day. West wind 5 to 11 mph becoming north in the afternoon. Winds could gust as high as 22 mph.
Tonight
Mostly cloudy, with a low around 21. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 35. Light and variable wind.
Monday Night
Partly cloudy, with a low around 26. Light and variable wind becoming southwest 5 to 10 mph in the evening. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 53. Southwest wind around 11 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 49.
Wednesday Night
A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.
Thursday
A chance of rain and snow, mainly before noon. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 17.
Friday
Mostly sunny, with a high near 26.
Friday Night
Mostly cloudy, with a low around 6.
Saturday
Partly sunny, with a high near 22.
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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:
5:01 am CST Dec 7, 2025
Forecast Valid:
8am CST Dec 7, 2025-6pm CST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation