Mountain Lake Weather Forecast

    • 53
    • 73

    Rain Showers

    • 56
    • 77

    Mostly Sunny

    • 61
    • 77

    Chance Rain Showers

    • 63
    • 79

    Rain Showers Likely

    • 62
    • 79

    Rain Showers Likely

    • 61
    • 78

    Chance Thunderstorms

Today 3 Aug Delaware

Showers likely. A chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall late this morning. Some Thunderstorms may produce gusty Winds and heavy rainfall this afternoon. Highs in the mid 70s. Southwest Winds 5 to 10 Mph, becoming west this afternoon. Chance of rain 70 percent.

Tonight 3 Aug Delaware

Partly cloudy. Patchy fog in the Evening, then Areas of fog after midnight. Lows in the mid 50s. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mountain Lake Temperature Statistics

August Temperature

Monticello, Sullivan County International Airport (24.9 miles)

  • Lowest 1 August, 2026

    59 °F

  • Average August

    72.1 °F

  • Highest 1 August, 2026

    82.9 °F

Climate (2021–2026)

Monticello, Sullivan County International Airport (24.9 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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