Merriman Dam Weather Forecast

    • 18
    • 24

    Snow Likely

    • 20
    • 35

    Snow

    • 18
    • 27

    Partly Sunny

    • 16
    • 29

    Chance Snow

    • 20
    • 31

    Chance Snow

    • 10
    • 28

    Partly Sunny

    • 12
    • 22

    Mostly Cloudy

Today 9 Dec Western Ulster

Partly sunny and cold. Near steady temperature in the lower 20s. Southwest Winds around 5 Mph.

Tonight 9 Dec Western Ulster

Mostly cloudy. A chance of snow after midnight. Not as cold with Lows around 16. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of snow 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Merriman Dam Temperature Statistics

December Temperature

Monticello, Sullivan County International Airport (20.5 miles)

  • Lowest 5 December, 2025

    -2 °F

  • Average December

    25.2 °F

  • Highest 1 December, 2025

    35.1 °F

Climate (2020–Present)

Monticello, Sullivan County International Airport (20.5 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    46 °F

  • Average High 2020–2025

    55.3 °F
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