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

38°F

3°C

Humidity 65%
Wind Speed NW 14 G 30 mph
Barometer 29.90 in (1012.7 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 14 Jan 8:54 am CST
Extended Forecast for

Chesterfield MO

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 30 by 5pm. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 36 mph.

    High: 39 °F⇓

    Decreasing
    Clouds and
    Breezy

  • Tonight

    Tonight: Clear, with a low around 18. Northwest wind 7 to 14 mph, with gusts as high as 26 mph.

    Low: 18 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 36. Northwest wind around 6 mph becoming south in the afternoon.

    High: 36 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 29. South wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 21 mph.

    Low: 29 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 45. West wind 10 to 17 mph, with gusts as high as 30 mph.

    High: 45 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 30 by 5pm. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 36 mph.
Tonight
Clear, with a low around 18. Northwest wind 7 to 14 mph, with gusts as high as 26 mph.
Thursday
Increasing clouds, with a high near 36. Northwest wind around 6 mph becoming south in the afternoon.
Thursday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 29. South wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 21 mph.
Friday
Partly sunny, with a high near 45. West wind 10 to 17 mph, with gusts as high as 30 mph.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 19.
Saturday
Partly sunny, with a high near 28.
Saturday Night
Mostly clear, with a low around 9.
Sunday
Mostly sunny, with a high near 27.
Sunday Night
Partly cloudy, with a low around 16.
M.L.King Day
Mostly sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 37.
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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:
8:26 am CST Jan 14, 2026
Forecast Valid:
9am CST Jan 14, 2026-6pm CST Jan 20, 2026
 
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Additional Resources

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Chance of Precipitation