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

18°F

-8°C

Humidity 65%
Wind Speed NW 8 mph
Barometer 30.12 in (1021.1 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 15 Jan 4:54 am CST
Extended Forecast for

Chesterfield MO

  • Today

    Today: Increasing clouds, with a high near 37. Light and variable wind becoming northwest 5 to 7 mph in the morning.

    High: 37 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of snow before midnight, then scattered flurries after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 32. South wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 32 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 45. West wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 45 °F

    Partly Sunny

  • Friday Night

    Friday Night: Scattered snow showers. Mostly cloudy, with a low around 21. West wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    Low: 21 °F

    Scattered
    Snow Showers

  • Saturday

    Saturday: Partly sunny, with a high near 27. West wind 11 to 14 mph, with gusts as high as 24 mph.

    High: 27 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 37. Light and variable wind becoming northwest 5 to 7 mph in the morning.
Tonight
A chance of snow before midnight, then scattered flurries after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 32. South wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 45. West wind 10 to 15 mph, with gusts as high as 26 mph.
Friday Night
Scattered snow showers. Mostly cloudy, with a low around 21. West wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 27. West wind 11 to 14 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 11.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 15.
M.L.King Day
Mostly sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Sunny, with a high near 32.
Tuesday Night
Mostly clear, with a low around 21.
Wednesday
Mostly sunny, with a high near 46.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield MO
 38.65°N 90.6°W (Elev. 466 ft)
Last Update:
6:21 am CST Jan 15, 2026
Forecast Valid:
6am CST Jan 15, 2026-6pm CST Jan 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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