Sullivan County International Airport Weather Forecast

    • 54
    • 77

    Mostly Sunny

    • 60
    • 82

    Partly Sunny

    • 66
    • 89

    Mostly Sunny

    • 66
    • 92

    Chance Thunderstorms

    • 65
    • 86

    Chance Thunderstorms

    • 65
    • 84

    Chance Thunderstorms

Today 22 Jul Sullivan

Mostly sunny. Highs in the upper 70s. Northeast Winds around 5 Mph, becoming northwest in the afternoon.

Tonight 22 Jul Sullivan

Mostly clear. Lows in the mid 50s. Light and variable Winds.

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Sullivan County International Airport Temperature Statistics

July Temperature

Monticello, Sullivan County International Airport (0 miles)

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  • Average July

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Climate (2020–Present)

Monticello, Sullivan County International Airport (0 miles)

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  • Average Low 2020–2024

    38.1 °F

  • Average 2020–2024

    47.3 °F

  • Average High 2020–2024

    56.8 °F
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