Monticello Weather Forecast

    • 61
    • 80

    Rain Showers

    • 54
    • 67

    Rain Showers Likely

    • 49
    • 64

    Chance Rain Showers

    • 46
    • 62

    Partly Sunny

    • 49
    • 66

    Partly Sunny

    • 52
    • 67

    Partly Sunny

Today 19 Sep Jones

A chance of Thunderstorms. Showers. Some Thunderstorms may produce heavy rainfall. Humid with Highs around 80. South Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 19 Sep Jones

Showers likely with a chance of Thunderstorms in the Evening, then Showers with a chance of Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Humid with Lows in the lower 60s. North Winds 5 to 10 Mph. Chance of rain 80 percent.

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Monticello Temperature Statistics

September Temperature

Monticello Regional Airport (1.9 miles)

  • Lowest 14 September, 2026

    50 °F

  • Average September

    71.6 °F

  • Highest 1 September, 2026

    93.2 °F

Climate (2021–2026)

Monticello Regional Airport (1.9 miles)

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  • Average Low 2021–2026

    37.4 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    58.5 °F
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