Fort Zumwalt Park Weather Forecast

    • 66
    • 82

    Increasing Clouds

    • 69
    • 86

    Partly Sunny

    • 67
    • 89

    Slight Chance Thunderstorms

    • 64
    • 86

    Mostly Sunny

    • 66
    • 86

    Partly Sunny

    • 71
    • 88

    Slight Chance Thunderstorms

Today 24 Aug St. Charles

Mostly sunny. Highs in the lower 80s. Southeast Winds around 5 Mph.

Tonight 24 Aug St. Charles

Partly cloudy in the Evening, then clearing. Lows in the mid 60s. East Winds around 5 Mph.

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Fort Zumwalt Park Temperature Statistics

August Temperature

St. Louis, Spirit Of St. Louis Airport (9.9 miles)

  • Lowest 3 August, 2026

    62.7 °F

  • Average August

    79 °F

  • Highest 11 August, 2026

    95.6 °F

Climate (2021–2026)

St. Louis, Spirit Of St. Louis Airport (9.9 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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