Monticello Weather Forecast

    • 44
    • 67

    Mostly Sunny

    • 55
    • 74

    Partly Sunny

    • 57
    • 77

    Slight Chance Thunderstorms

    • 59
    • 79

    Mostly Sunny

    • 60
    • 84

    Mostly Sunny

    • 64
    • 87

    Partly Sunny

    • 63
    • 86

    Partly Sunny

Today 7 Sep Jones

Sunny. Near steady temperature in the mid 60s. Northwest Winds around 5 Mph.

Tonight 7 Sep Jones

Mostly clear. Lows in the mid 40s. Southeast Winds around 5 Mph.

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Monticello Temperature Statistics

September Temperature

Monticello Regional Airport (1.9 miles)

  • Lowest 4 September, 2025

    42.8 °F

  • Average September

    57.6 °F

  • Highest 2 September, 2025

    77 °F

Climate (2020–Present)

Monticello Regional Airport (1.9 miles)

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  • Average Low 2020–2025

    37.6 °F

  • Average 2020–2025

    48.2 °F

  • Average High 2020–2025

    58.4 °F
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