Lake Jefferson Weather Forecast

    • 48
    • 66

    Rain Showers

    • 44
    • 56

    Rain

    • 42
    • 62

    Chance Rain Showers

    • 41
    • 66

    Mostly Sunny

    • 50
    • 74

    Partly Sunny

    • 55
    • 77

    Chance Rain Showers

    • 58
    • 72

    Chance Rain Showers

Today 8 May Sullivan

Numerous Showers with isolated Thunderstorms. Highs around 70. Northwest Winds around 5 Mph. Chance of rain 70 percent.

Tonight 8 May Sullivan

Showers. Lows in the upper 40s. Northeast Winds around 5 Mph. Chance of rain 90 percent.

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Lake Jefferson Temperature Statistics

May Temperature

Monticello, Sullivan County International Airport (7.5 miles)

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  • Average May

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Climate (2020–Present)

Monticello, Sullivan County International Airport (7.5 miles)

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  • Average Low 2020–2024

    39.1 °F

  • Average 2020–2024

    48.4 °F

  • Average High 2020–2024

    58 °F
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