Monticello Weather Forecast

    • 27
    • 32

    Snow Likely

    • 42
    • 58

    Partly Sunny

    • 44
    • 71

    Mostly Sunny

    • 48
    • 75

    Partly Sunny

    • 50
    • 77

    Mostly Sunny

    • 37
    • 69

    Mostly Cloudy

Today 17 Mar Lewis

Sunny this Morning, then partly sunny with a slight chance of snow this afternoon. Highs in the lower 30s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming southwest this afternoon. Chance of snow 20 percent. Wind chill Values as low as 3 below this morning.

Tonight 17 Mar Lewis

Mostly cloudy with a chance of snow. A slight chance of rain after midnight. Not as cool. Near steady temperature in the lower 30s. Temperature rising into the lower 30s after midnight. South Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of precipitation 50 percent.

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Monticello Temperature Statistics

March Temperature

Keokuk Municipal Airport (28 miles)

  • Lowest 1 March, 2026

    21.2 °F

  • Average March

    43.9 °F

  • Highest 6 March, 2026

    71.6 °F

Climate (2021–Present)

Keokuk Municipal Airport (28 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    63.2 °F
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