Mount Pleasant Weather Forecast

    • 18
    • 40

    Becoming Sunny

    • 28
    • 35

    Partly Sunny

    • 20
    • 45

    Mostly Cloudy

    • 10
    • 28

    Partly Sunny

    • 16
    • 26

    Mostly Sunny

    • 14
    • 31

    Mostly Sunny

Today 14 Jan St. Louis City

Mostly cloudy this Morning, then becoming mostly sunny. Much cooler with Highs in the upper 30s. Temperature falling into the lower 30s this afternoon. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 14 Jan St. Louis City

Clear. Much cooler with Lows around 18. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.

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Mount Pleasant Temperature Statistics

January Temperature

St. Louis Downtown Airport (4.3 miles)

  • Lowest 4 January, 2026

    19 °F

  • Average January

    41.5 °F

  • Highest 6 January, 2026

    68 °F

Climate (2021–Present)

St. Louis Downtown Airport (4.3 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.7 °F
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