Wentzville Weather Forecast

    • 50
    • 76

    Increasing Clouds

    • 53
    • 75

    Mostly Cloudy

    • 54
    • 78

    Mostly Sunny

    • 56
    • 83

    Mostly Cloudy

    • 56
    • 80

    Mostly Cloudy

    • 55
    • 74

    Chance Rain Showers

Today 26 Oct St. Charles

Partly sunny. Highs in the upper 70s. Southwest Winds around 5 Mph.

Tonight 26 Oct St. Charles

Partly cloudy. Lows in the lower 50s. South Winds around 5 Mph.

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Wentzville Temperature Statistics

October Temperature

St. Louis, Spirit Of St. Louis Airport (14.9 miles)

  • Lowest 18 October, 2026

    35.7 °F

  • Average October

    63.5 °F

  • Highest 13 October, 2026

    93.7 °F

Climate (2021–2026)

St. Louis, Spirit Of St. Louis Airport (14.9 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    69 °F
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