Monticello Weather Forecast

    • 68
    • 93

    Increasing Clouds

    • 67
    • 92

    Mostly Sunny

    • 67
    • 93

    Mostly Sunny

    • 68
    • 94

    Partly Sunny

    • 68
    • 93

    Partly Sunny

    • 67
    • 92

    Slight Chance Thunderstorms

Today 16 Sep Lawrence

Mostly sunny. Highs in the lower 90s. Southwest Winds around 5 Mph.

Tonight 16 Sep Lawrence

Partly cloudy. Lows in the upper 60s. Light and variable Winds.

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Monticello Temperature Statistics

September Temperature

Brookhaven-Lincoln County Airport (18 miles)

  • Lowest 8 September, 2025

    55.4 °F

  • Average September

    75.7 °F

  • Highest 12 September, 2025

    93.2 °F

Climate (2020–Present)

Brookhaven-Lincoln County Airport (18 miles)

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  • Average Low 2020–2025

    56.5 °F

  • Average 2020–2025

    66.1 °F

  • Average High 2020–2025

    77.4 °F
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