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

32°F

0°C

Humidity 66%
Wind Speed E 5 mph
Barometer 30.24 in (1024.9 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 8 Dec 4:54 pm CST
Extended Forecast for

Wentzville MO

  • Tonight

    Tonight: Increasing clouds, with a low around 27. Southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 22 mph.

    Low: 27 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53. Southwest wind 9 to 11 mph, with gusts as high as 25 mph.

    High: 53 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Southwest wind 13 to 18 mph becoming west after midnight. Winds could gust as high as 34 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 46. Breezy, with a northwest wind 20 to 25 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 46 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25. Northwest wind 5 to 9 mph becoming light after midnight.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 38.

    High: 38 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 35.

    High: 35 °F

    Mostly Cloudy

  • Friday Night

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

    Low: 12 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 27. Southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 22 mph.
Tuesday
Mostly sunny, with a high near 53. Southwest wind 9 to 11 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Southwest wind 13 to 18 mph becoming west after midnight. Winds could gust as high as 34 mph.
Wednesday
Partly sunny, with a high near 46. Breezy, with a northwest wind 20 to 25 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 40 mph.
Wednesday Night
Mostly cloudy, with a low around 25. Northwest wind 5 to 9 mph becoming light after midnight.
Thursday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
Mostly cloudy, with a high near 35.
Friday Night
Mostly cloudy, with a low around 12.
Saturday
Partly sunny, with a high near 24.
Saturday Night
Mostly cloudy, with a low around 12.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
A 20 percent chance of rain. Mostly cloudy, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wentzville MO
 38.81°N 90.85°W (Elev. 633 ft)
Last Update:
5:06 pm CST Dec 8, 2025
Forecast Valid:
5pm CST Dec 8, 2025-6pm CST Dec 15, 2025
 
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