Mount Pleasant Weather Forecast

    • 72
    • 91

    Decreasing Clouds

    • 73
    • 91

    Partly Sunny

    • 76
    • 94

    Mostly Sunny

    • 77
    • 95

    Mostly Sunny

    • 76
    • 95

    Chance Thunderstorms

    • 71
    • 90

    Chance Thunderstorms

    • 69
    • 84

    Chance Thunderstorms

Today 7 Aug St. Louis City

Mostly sunny and warmer. Near steady temperature in the upper 80s. West Winds 5 to 10 Mph. Heat index Values up to 100.

Tonight 7 Aug St. Louis City

Partly cloudy. Lows in the lower 70s. Southwest Winds around 5 Mph.

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Mount Pleasant Temperature Statistics

August Temperature

St. Louis Downtown Airport (4.3 miles)

  • Lowest 3 August, 2026

    63.6 °F

  • Average August

    75.8 °F

  • Highest 4 August, 2026

    89.7 °F

Climate (2021–2026)

St. Louis Downtown Airport (4.3 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    69.3 °F
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