Mark Twain Lake Weather Forecast

    • 8
    • 20

    Increasing Clouds

    • 20
    • 28

    Slight Chance Snow

    • 23
    • 35

    Mostly Cloudy

    • 15
    • 29

    Mostly Cloudy

    • 16
    • 27

    Partly Sunny

    • 31
    • 38

    Partly Sunny

    • 22
    • 43

    Partly Sunny

Today 31 Jan Monroe

Sunny. Near steady temperature around 20. Northwest Winds 5 to 10 Mph.

Tonight 31 Jan Monroe

Mostly clear this Evening, then becoming partly cloudy. Cold with Lows around 5 above. Southwest Winds around 5 Mph.

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Mark Twain Lake Temperature Statistics

January Temperature

Quincy Regional Airport-Baldwin Field (42.9 miles)

  • Lowest 26 January, 2026

    -7.3 °F

  • Average January

    26.6 °F

  • Highest 7 January, 2026

    62.7 °F

Climate (2021–Present)

Quincy Regional Airport-Baldwin Field (42.9 miles)

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  • Average Low 2021–2026

    45.5 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    64.9 °F
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