Merriman Dam Weather Forecast

    • 55
    • 80

    Sunny

    • 43
    • 76

    Mostly Sunny

    • 44
    • 70

    Mostly Sunny

    • 47
    • 70

    Partly Sunny

    • 56
    • 75

    Partly Sunny

    • 59
    • 81

    Slight Chance Rain Showers

Today 18 Sep Western Ulster

Sunny, warmer. Near steady temperature in the upper 70s. Northwest Winds around 5 Mph.

Tonight 18 Sep Western Ulster

Clear. Lows in the mid 50s. Northwest Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Merriman Dam Temperature Statistics

September Temperature

Monticello, Sullivan County International Airport (20.5 miles)

  • Lowest 2 September, 2025

    48.2 °F

  • Average September

    48.2 °F

  • Highest 2 September, 2025

    48.2 °F

Climate (2020–Present)

Monticello, Sullivan County International Airport (20.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    37 °F

  • Average 2020–2025

    46.2 °F

  • Average High 2020–2025

    55.6 °F
Get WillyWeather+ to remove ads