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

Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

36°F

2°C

Humidity 31%
Wind Speed NW 15 G 23 mph
Barometer 30.24 in (1024.6 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 21 Jan 10:54 pm CST
Extended Forecast for

Chesterfield MO

Winter Storm Watch January 24, 12:00am until January 25, 12:00pm
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: Partly cloudy, with a low around 25. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 26 mph.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 40. West wind 3 to 5 mph.

    High: 40 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 12. Light and variable wind becoming north 9 to 14 mph after midnight. Winds could gust as high as 23 mph.

    Low: 12 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 16. North wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 16 °F

    Cold

  • Friday Night

    Friday Night: A 30 percent chance of snow after midnight. Cloudy, with a low around 3. Northeast wind around 10 mph.

    Low: 3 °F

    Cloudy then
    Chance Snow

  • Saturday

    Saturday: Snow likely, mainly after noon. Cloudy and cold, with a high near 14. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 14 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Snow, mainly before midnight. Low around 8. Chance of precipitation is 80%.

    Low: 8 °F

    Snow then
    Chance Snow

  • Sunday

    Sunday: A 40 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 19.

    High: 19 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -1.

    Low: -1 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 25. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 26 mph.
Thursday
Partly sunny, with a high near 40. West wind 3 to 5 mph.
Thursday Night
Partly cloudy, with a low around 12. Light and variable wind becoming north 9 to 14 mph after midnight. Winds could gust as high as 23 mph.
Friday
Mostly cloudy and cold, with a high near 16. North wind 10 to 14 mph, with gusts as high as 24 mph.
Friday Night
A 30 percent chance of snow after midnight. Cloudy, with a low around 3. Northeast wind around 10 mph.
Saturday
Snow likely, mainly after noon. Cloudy and cold, with a high near 14. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Snow, mainly before midnight. Low around 8. Chance of precipitation is 80%.
Sunday
A 40 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 19.
Sunday Night
Partly cloudy, with a low around -1.
Monday
Sunny and cold, with a high near 17.
Monday Night
Mostly clear, with a low around 4.
Tuesday
Mostly sunny, with a high near 30.
Tuesday Night
Partly cloudy, with a low around 14.
Wednesday
Mostly sunny, with a high near 29.
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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:
9:51 pm CST Jan 21, 2026
Forecast Valid:
11pm CST Jan 21, 2026-6pm CST Jan 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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