Wentzville Weather Forecast

    • 64
    • 85

    Mostly Sunny

    • 67
    • 89

    Mostly Sunny

    • 70
    • 91

    Partly Sunny

    • 68
    • 86

    Chance Rain Showers

    • 68
    • 86

    Slight Chance Thunderstorms

    • 70
    • 88

    Partly Sunny

Today 3 Aug St. Charles

Sunny. Highs in the mid 80s. Northeast Winds around 5 Mph.

Tonight 3 Aug St. Charles

Mostly clear. Lows in the mid 60s. East Winds around 5 Mph.

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Wentzville Temperature Statistics

August Temperature

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

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  • Average August

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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

    57.5 °F

  • Average High 2021–2026

    68.9 °F
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