Mount Pleasant Weather Forecast

    • 69
    • 82

    Thunderstorms

    • 67
    • 76

    Rain Showers Likely

    • 66
    • 79

    Chance Rain Showers

    • 66
    • 82

    Mostly Sunny

    • 68
    • 86

    Mostly Sunny

    • 71
    • 89

    Mostly Sunny

    • 72
    • 90

    Slight Chance Thunderstorms

Today 31 Jul St. Louis City

Partly sunny with a chance of Showers and Thunderstorms. Highs in the mid 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 31 Jul St. Louis City

Showers with a chance of Thunderstorms this Evening, then a slight chance of Showers after midnight. Lows in the upper 60s. South Winds 10 to 15 Mph, becoming southwest 5 to 10 Mph after midnight. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Pleasant Temperature Statistics

July Temperature

St. Louis Downtown Airport (4.3 miles)

  • Lowest 23 July, 2026

    61.6 °F

  • Average July

    80.7 °F

  • Highest 26 July, 2026

    97.6 °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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