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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 38.81°N 90.85°W (Text-Only)
NWS Forecast for: Wentzville MO
Issued by: National Weather Service Saint Louis, MO
Last Update: 12:26 am CST Dec 5, 2025		Print

  • Overnight

    Overnight: Mostly clear, with a low around 9. Calm wind.

    Low: 9 °F

    Mostly Clear



  • Friday

    Friday: Sunny, with a high near 42. South wind 3 to 7 mph.

    High: 42 °F

    Sunny



  • Friday
    Night

    Friday Night: Mostly cloudy, with a low around 27. South wind 5 to 7 mph becoming west after midnight.

    Low: 27 °F

    Mostly Cloudy



  • Saturday

    Saturday: Partly sunny, with a high near 37. Calm wind becoming east around 5 mph in the afternoon.

    High: 37 °F

    Partly Sunny



  • Saturday
    Night

    Saturday Night: A chance of snow between midnight and 3am, then a chance of rain after 3am. Mostly cloudy, with a low around 28. Southeast wind around 6 mph. Chance of precipitation is 40%.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain before 9am, then a chance of snow between 9am and noon. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.

    High: 38 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Sunday
    Night

    Sunday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy



  • Monday

    Monday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny



  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy



    • Overnight: Mostly clear, with a low around 9. Calm wind.

    Friday: Sunny, with a high near 42. South wind 3 to 7 mph.

    Friday Night: Mostly cloudy, with a low around 27. South wind 5 to 7 mph becoming west after midnight.

    Saturday: Partly sunny, with a high near 37. Calm wind becoming east around 5 mph in the afternoon.

    Saturday Night: A chance of snow between midnight and 3am, then a chance of rain after 3am. Mostly cloudy, with a low around 28. Southeast wind around 6 mph. Chance of precipitation is 40%.

    Sunday: A chance of rain before 9am, then a chance of snow between 9am and noon. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.

    Sunday Night: Mostly cloudy, with a low around 13.

    Monday: Mostly sunny, with a high near 32.

    Monday Night: Partly cloudy, with a low around 22.

    Tuesday: Mostly sunny, with a high near 47.

    Tuesday Night: Mostly cloudy, with a low around 35.

    Wednesday: A 20 percent chance of rain. Mostly cloudy, with a high near 45.

    Wednesday Night: Mostly cloudy, with a low around 20.

    Thursday: Mostly cloudy, with a high near 34.


    Wentzville MO
     38.81°N 90.85°W (Elev. 633 ft)

    Visit your local NWS office at: https://www.weather.gov/lsx/