Rondout Reservoir Weather Forecast

    • 35
    • 50

    Increasing Clouds

    • 38
    • 57

    Rain Showers Likely

    • 40
    • 63

    Partly Sunny

    • 40
    • 64

    Partly Sunny

    • 41
    • 54

    Chance Rain Showers

    • 41
    • 59

    Chance Rain Showers

Today 21 Apr Western Ulster

Mostly sunny. Highs in the lower 50s. Southwest Winds around 5 Mph.

Tonight 21 Apr Western Ulster

Mostly cloudy with a chance of rain and snow Showers. Not as cool with Lows in the lower 30s. Southwest Winds around 5 Mph in the Evening, becoming light and variable. Chance of precipitation 30 percent.

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  • Temperature Real-Time

Rondout Reservoir Temperature Statistics

April Temperature

Monticello, Sullivan County International Airport (18.6 miles)

  • Lowest 8 April, 2026

    18 °F

  • Average April

    49.4 °F

  • Highest 16 April, 2026

    82.9 °F

Climate (2021–Present)

Monticello, Sullivan County International Airport (18.6 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    45.7 °F

  • Average High 2021–2026

    55.1 °F
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