Monticello Weather Forecast

    • 49
    • 57

    Chance Rain Showers

    • 48
    • 62

    Chance Rain Showers

    • 45
    • 59

    Chance Rain Showers

    • 43
    • 57

    Chance Rain Showers

    • 39
    • 55

    Partly Sunny

    • 39
    • 58

    Partly Sunny

Today 25 Oct Lewis

Cloudy with a 20 percent chance of Showers. Highs in the upper 50s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 25 Oct Lewis

Cloudy. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Lows in the upper 40s. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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Monticello Temperature Statistics

October Temperature

Keokuk Municipal Airport (28 miles)

  • Lowest 22 October, 2025

    39.2 °F

  • Average October

    64.5 °F

  • Highest 2 October, 2025

    87.8 °F

Climate (2020–Present)

Keokuk Municipal Airport (28 miles)

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  • Average Low 2020–2025

    43.5 °F

  • Average 2020–2025

    53.1 °F

  • Average High 2020–2025

    62.6 °F
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