Shandelee Lake Weather Forecast

    • 59
    • 77

    Chance Thunderstorms

    • 56
    • 76

    Mostly Sunny

    • 57
    • 78

    Partly Sunny

    • 51
    • 72

    Chance Rain Showers

    • 54
    • 73

    Partly Sunny

    • 55
    • 73

    Mostly Cloudy

Today 17 Aug Sullivan

Areas of fog this morning. Mostly cloudy this Morning, then partly sunny with a chance of Showers and Thunderstorms this afternoon. Highs in the lower 80s. North Winds around 5 Mph, becoming northwest around 5 Mph this afternoon. Chance of rain 50 percent.

Tonight 17 Aug Sullivan

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Patchy fog. Lows in the lower 60s. Northwest Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Shandelee Lake Temperature Statistics

August Temperature

Monticello, Sullivan County International Airport (13 miles)

  • Lowest 4 August, 2026

    53.1 °F

  • Average August

    70.9 °F

  • Highest 6 August, 2026

    87.1 °F

Climate (2021–2026)

Monticello, Sullivan County International Airport (13 miles)

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  • Average Low 2021–2026

    36.5 °F

  • Average 2021–2026

    45.9 °F

  • Average High 2021–2026

    55.1 °F
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