Merriman Dam Weather Forecast

    • 62
    • 80

    Slight Chance Thunderstorms

    • 58
    • 80

    Mostly Sunny

    • 58
    • 81

    Chance Rain Showers

    • 54
    • 76

    Chance Rain Showers

    • 56
    • 76

    Chance Rain Showers

Today 17 Aug Western Ulster

Mostly cloudy in the Morning, then partly sunny with Showers likely with a chance of Thunderstorms in the afternoon. Humid with Highs in the upper 70s. Light and variable Winds, becoming west around 5 Mph in the afternoon. Chance of rain 60 percent.

Tonight 17 Aug Western Ulster

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the upper 50s. Northwest Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Merriman Dam Temperature Statistics

August Temperature

Monticello, Sullivan County International Airport (20.5 miles)

  • Lowest 4 August, 2026

    53.1 °F

  • Average August

    70.9 °F

  • Highest 6 August, 2026

    87.1 °F

Climate (2021–2026)

Monticello, Sullivan County International Airport (20.5 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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