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

20°F

-7°C

Humidity 45%
Wind Speed S 6 mph
Barometer 30.42 in (1031.7 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 20 Jan 8:54 am CST
Extended Forecast for

3 Miles E Chesterfield MO

  • Today

    Today: Mostly sunny, with a high near 38. South wind 6 to 9 mph.

    High: 38 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 29. South wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 29 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45. West wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 23. Southwest wind 6 to 8 mph becoming northwest after midnight.

    Low: 23 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 38. Northwest wind around 6 mph becoming calm in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 18.

    High: 18 °F

    Cold

  • Friday Night

    Friday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 3.

    Low: 3 °F

    Chance Snow

  • Saturday

    Saturday: A 40 percent chance of snow. Mostly cloudy and cold, with a high near 15.

    High: 15 °F

    Chance Snow

Detailed Forecast

Today
Mostly sunny, with a high near 38. South wind 6 to 9 mph.
Tonight
Increasing clouds, with a low around 29. South wind 9 to 11 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 45. West wind 7 to 10 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 23. Southwest wind 6 to 8 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 38. Northwest wind around 6 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, with a low around 12.
Friday
Mostly cloudy and cold, with a high near 18.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 3.
Saturday
A 40 percent chance of snow. Mostly cloudy and cold, with a high near 15.
Saturday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 7.
Sunday
Mostly sunny, with a high near 25.
Sunday Night
Mostly clear, with a low around 7.
Monday
Sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Chesterfield MO
 38.65°N 90.51°W (Elev. 597 ft)
Last Update:
8:47 am CST Jan 20, 2026
Forecast Valid:
9am CST Jan 20, 2026-6pm CST Jan 26, 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