Mountain Lake Weather Forecast

    • 16
    • 25

    Increasing Clouds

    • 17
    • 36

    Mostly Cloudy

    • 38
    • 40

    Mostly Cloudy

    • 16
    • 45

    Slight Chance Snow Showers

    • 22
    • 30

    Mostly Cloudy

    • 15
    • 33

    Chance Snow Showers

    • 13
    • 26

    Chance Snow Showers

Today 16 Dec Delaware

Partly sunny. Highs in the upper 20s. Southwest Winds around 5 Mph.

Tonight 16 Dec Delaware

Mostly clear. Lows 15 to 20. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mountain Lake Temperature Statistics

December Temperature

Monticello, Sullivan County International Airport (24.9 miles)

  • Lowest 5 December, 2025

    -2 °F

  • Average December

    22.6 °F

  • Highest 1 December, 2025

    35.1 °F

Climate (2020–Present)

Monticello, Sullivan County International Airport (24.9 miles)

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  • Average Low 2020–2025

    36.6 °F

  • Average 2020–2025

    45.9 °F

  • Average High 2020–2025

    55.2 °F
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