Monticello Weather Forecast

    • 3
    • 17

    Becoming Sunny

    • 5
    • 22

    Mostly Sunny

    • 20
    • 29

    Mostly Cloudy

    • 22
    • 34

    Mostly Cloudy

    • 24
    • 36

    Chance Snow

    • 19
    • 33

    Mostly Cloudy

Today 30 Jan Lewis

Sunny Early, then becoming partly sunny. A chance of Flurries. Highs around 17. North Winds 10 to 15 Mph. Wind chill Values as low as 1 below.

Tonight 30 Jan Lewis

Mostly cloudy with a chance of Flurries in the Evening, then mostly clear after midnight. Cold with Lows around 3 above. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as 10 below.

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Monticello Temperature Statistics

January Temperature

Keokuk Municipal Airport (28 miles)

  • Lowest 23 January, 2026

    -7.6 °F

  • Average January

    25.7 °F

  • Highest 7 January, 2026

    62.6 °F

Climate (2021–Present)

Keokuk Municipal Airport (28 miles)

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  • Average Low 2021–2026

    43.4 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.7 °F
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