Monticello Weather Forecast

    • 30
    • 51

    Mostly Sunny

    • 39
    • 46

    Rain

    • 30
    • 46

    Chance Rain

    • 37
    • 47

    Mostly Cloudy

    • 31
    • 57

    Mostly Cloudy

    • 26
    • 43

    Partly Sunny

Today 29 Jan Lewis

Sunny. Highs in the lower 50s. West Winds 5 to 10 Mph.

Tonight 29 Jan Lewis

Mostly clear in the Evening, then becoming partly cloudy. Lows around 30. South Winds around 5 Mph.

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Monticello Temperature Statistics

January Temperature

Keokuk Municipal Airport (28 miles)

  • Lowest 21 January, 2025

    -11.2 °F

  • Average January

    21.3 °F

  • Highest 17 January, 2025

    55.4 °F

Climate (2020–Present)

Keokuk Municipal Airport (28 miles)

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  • Average Low 2020–2025

    43.5 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    62.4 °F
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