Rondout Reservoir Weather Forecast
- 54
- 81
Mostly Sunny
- 53
- 77
Partly Sunny
- 55
- 74
Mostly Cloudy
- 56
- 80
Mostly Sunny
- 49
- 79
Mostly Sunny
- 45
- 70
Partly Sunny
Today 15 Sep Western Ulster
Sunny. Highs around 80. East Winds around 5 Mph.
Tonight 15 Sep Western Ulster
Partly cloudy. Patchy fog after midnight. Lows in the lower 50s. Light and variable Winds.
Rondout Reservoir Temperature Statistics
September Temperature
Monticello, Sullivan County International Airport (18.6 miles)
Lowest 2 September, 2025
48.2 °FAverage September
48.2 °FHighest 2 September, 2025
48.2 °F
Climate (2020–Present)
Monticello, Sullivan County International Airport (18.6 miles)
Average Low 2020–2025
37 °FAverage 2020–2025
46.3 °FAverage High 2020–2025
55.6 °F