Rondout Reservoir Weather Forecast

    • 63
    • 75

    Rain Showers Likely

    • 63
    • 81

    Rain Showers

    • 63
    • 76

    Rain Showers

    • 60
    • 79

    Chance Rain Showers

    • 56
    • 76

    Slight Chance Thunderstorms

    • 54
    • 73

    Chance Rain Showers

Today 31 Aug Western Ulster

Patchy fog in the morning. Partly sunny in the Morning, then mostly cloudy with a chance of Showers in the afternoon. Highs in the mid 70s. Light and variable Winds, becoming southwest around 5 Mph in the afternoon. Chance of rain 30 percent.

Tonight 31 Aug Western Ulster

Mostly cloudy. A chance of Showers in the Evening, then Showers likely after midnight. Patchy fog. Lows in the lower 60s. Light and variable Winds. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rondout Reservoir Temperature Statistics

August Temperature

Monticello, Sullivan County International Airport (18.6 miles)

  • Lowest 24 August, 2026

    50 °F

  • Average August

    68.3 °F

  • Highest 6 August, 2026

    87.1 °F

Climate (2021–2026)

Monticello, Sullivan County International Airport (18.6 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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