Mount Pleasant Weather Forecast

    • 13
    • 25

    Gradual Clearing

    • 12
    • 35

    Partly Sunny

    • 12
    • 23

    Mostly Sunny

    • 30
    • 39

    Partly Sunny

    • 21
    • 47

    Partly Sunny

    • 20
    • 34

    Chance Rain

Today 17 Jan St. Louis City

Mostly cloudy with a chance of Flurries. Much cooler with Highs in the mid 20s. West Winds 15 to 20 Mph.

Tonight 17 Jan St. Louis City

Mostly cloudy with a chance of Flurries in the Evening, then partly cloudy after midnight. Lows around 12. West Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as zero.

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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

    41.9 °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

    68.8 °F
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