Mount Pleasant Weather Forecast

    • 66
    • 84

    Increasing Clouds

    • 68
    • 86

    Thunderstorms

    • 67
    • 82

    Thunderstorms

    • 62
    • 79

    Partly Sunny

    • 64
    • 81

    Partly Sunny

    • 65
    • 84

    Partly Sunny

Today 19 Jun St. Louis City

Sunny. Near steady temperature in the lower 80s. Northwest Winds around 5 Mph.

Tonight 19 Jun St. Louis City

Mostly cloudy. Isolated Showers after midnight. Lows in the mid 60s. Northeast Winds around 5 Mph, becoming southwest after midnight. Chance of rain 20 percent.

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Mount Pleasant Temperature Statistics

June Temperature

St. Louis Downtown Airport (4.3 miles)

  • Lowest 3 June, 2026

    52.6 °F

  • Average June

    75.7 °F

  • Highest 10 June, 2026

    93.7 °F

Climate (2021–2026)

St. Louis Downtown Airport (4.3 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    69.3 °F
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