Rondout Reservoir Weather Forecast

    • -2
    • 26

    Mostly Sunny

    • 3
    • 11

    Snow

    • 9
    • 16

    Snow

    • 2
    • 21

    Chance Snow

    • 3
    • 17

    Partly Sunny

    • 1
    • 19

    Mostly Cloudy

Today 23 Jan Western Ulster

Mostly sunny. Much Colder with Highs in the lower 20s. Temperature falling to around 14 this afternoon. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Wind chill Values as low as 5 below.

Tonight 23 Jan Western Ulster

Partly cloudy. Much Colder with Lows around 5 below. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Wind chill Values as low as 19 below.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rondout Reservoir Temperature Statistics

January Temperature

Monticello, Sullivan County International Airport (18.6 miles)

  • Lowest 21 January, 2026

    -9 °F

  • Average January

    24.9 °F

  • Highest 9 January, 2026

    44.1 °F

Climate (2021–Present)

Monticello, Sullivan County International Airport (18.6 miles)

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  • Average Low 2021–2026

    36.5 °F

  • Average 2021–2026

    45.8 °F

  • Average High 2021–2026

    55.1 °F
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