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

39°F

4°C

Humidity 57%
Wind Speed E 6 mph
Barometer 30.14 in (1021.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 2 Feb 1:54 pm CST
Extended Forecast for

Chesterfield MO

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 40. Calm wind.

    High: 40 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of freezing rain after 4am. Mostly cloudy, with a low around 29. Light east wind. Chance of precipitation is 20%.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance
    Freezing Rain

  • Tuesday

    Tuesday: A chance of snow and freezing rain before 9am, then a slight chance of freezing rain between 9am and 10am. Mostly cloudy, with a high near 34. North wind 3 to 8 mph. Chance of precipitation is 30%.

    High: 34 °F

    Chance Wintry
    Mix then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18. North wind around 5 mph becoming calm in the evening.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 32. Calm wind becoming north around 6 mph.

    High: 32 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 40. Calm wind.
Tonight
A slight chance of freezing rain after 4am. Mostly cloudy, with a low around 29. Light east wind. Chance of precipitation is 20%.
Tuesday
A chance of snow and freezing rain before 9am, then a slight chance of freezing rain between 9am and 10am. Mostly cloudy, with a high near 34. North wind 3 to 8 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 18. North wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 32. Calm wind becoming north around 6 mph.
Wednesday Night
Mostly clear, with a low around 17.
Thursday
Mostly sunny, with a high near 44.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 50.
Friday Night
Mostly clear, with a low around 24.
Saturday
Mostly sunny, with a high near 40.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 46.
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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:
12:26 pm CST Feb 2, 2026
Forecast Valid:
1pm CST Feb 2, 2026-6pm CST Feb 8, 2026
 
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