Rondout Reservoir Weather Forecast
- 56
- 80
Mostly Sunny
- 44
- 77
Mostly Sunny
- 43
- 69
Mostly Sunny
- 47
- 70
Partly Sunny
- 56
- 76
Partly Sunny
- 59
- 81
Partly Sunny
Today 18 Sep Western Ulster
Patchy fog this morning. Sunny, warmer with Highs in the upper 70s. Light and variable Winds, becoming northwest around 5 Mph this afternoon.
Tonight 18 Sep Western Ulster
Mostly clear. Lows in the mid 50s. Northwest Winds around 5 Mph.
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
46.2 °FAverage High 2020–2025
55.6 °F