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

35°F

2°C

Humidity 27%
Wind Speed S 13 G 25 mph
Barometer 30.16 in (1022.2 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 20 Jan 8:54 pm CST
Extended Forecast for

Wentzville MO

  • Tonight

    Tonight: Mostly cloudy, with a low around 31. South wind around 11 mph, with gusts as high as 23 mph.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 41. West wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 41 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 22. Southwest wind 5 to 11 mph becoming northwest after midnight. Winds could gust as high as 24 mph.

    Low: 22 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 36. North wind around 5 mph becoming calm in the afternoon.

    High: 36 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 8. Light north wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 23 mph.

    Low: 8 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 14.

    High: 14 °F

    Cold

  • Friday Night

    Friday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 2.

    Low: 2 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: A 40 percent chance of snow. Cloudy and cold, with a high near 13.

    High: 13 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 6.

    Low: 6 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 31. South wind around 11 mph, with gusts as high as 23 mph.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 41. West wind 9 to 13 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 22. Southwest wind 5 to 11 mph becoming northwest after midnight. Winds could gust as high as 24 mph.
Thursday
Partly sunny, with a high near 36. North wind around 5 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, with a low around 8. Light north wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 23 mph.
Friday
Mostly cloudy and cold, with a high near 14.
Friday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 2.
Saturday
A 40 percent chance of snow. Cloudy and cold, with a high near 13.
Saturday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 6.
Sunday
Partly sunny, with a high near 22.
Sunday Night
Partly cloudy, with a low around 5.
Monday
Mostly sunny, with a high near 26.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Mostly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wentzville MO
 38.81°N 90.85°W (Elev. 633 ft)
Last Update:
7:01 pm CST Jan 20, 2026
Forecast Valid:
9pm CST Jan 20, 2026-6pm CST Jan 27, 2026
 
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Additional Resources

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Chance of Precipitation