Hillburn Reservoir Weather Forecast

    • 58
    • 79

    Slight Chance Thunderstorms

    • 56
    • 79

    Mostly Sunny

    • 56
    • 77

    Mostly Sunny

    • 62
    • 80

    Partly Sunny

    • 64
    • 80

    Rain Showers Likely

    • 61
    • 82

    Chance Rain Showers

    • 58
    • 80

    Partly Sunny

Today 23 Aug Rockland

Partly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the upper 70s. Southwest Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 23 Aug Rockland

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then clear after midnight. Lows in the upper 50s. West Winds around 5 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hillburn Reservoir Temperature Statistics

August Temperature

Caldwell, Essex County Airport (18 miles)

  • Lowest 4 August, 2026

    60.1 °F

  • Average August

    76 °F

  • Highest 7 August, 2026

    91.9 °F

Climate (2021–2026)

Caldwell, Essex County Airport (18 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    56 °F

  • Average High 2021–2026

    65.2 °F
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