Merriman Dam Weather Forecast

    • 50
    • 75

    Mostly Sunny

    • 57
    • 76

    Partly Sunny

    • 64
    • 77

    Chance Rain Showers

    • 54
    • 76

    Chance Rain Showers

    • 50
    • 70

    Mostly Sunny

    • 55
    • 73

    Partly Sunny

Today 7 Sep Western Ulster

Sunny. Highs in the lower 70s. North Winds 5 to 10 Mph.

Tonight 7 Sep Western Ulster

Partly cloudy. Lows in the upper 40s. Northwest Winds around 5 Mph.

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Merriman Dam Temperature Statistics

September Temperature

Monticello, Sullivan County International Airport (20.5 miles)

  • Lowest 2 September, 2026

    61 °F

  • Average September

    68.1 °F

  • Highest 3 September, 2026

    81 °F

Climate (2021–2026)

Monticello, Sullivan County International Airport (20.5 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    45.8 °F

  • Average High 2021–2026

    55.1 °F
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