Hillburn Reservoir Weather Forecast

    • 58
    • 80

    Partly Sunny

    • 56
    • 79

    Mostly Sunny

    • 62
    • 83

    Mostly Sunny

    • 64
    • 85

    Rain Showers Likely

    • 63
    • 80

    Rain Showers

    • 62
    • 80

    Chance Rain Showers

    • 63
    • 81

    Partly Sunny

Today 24 Jul Rockland

Mostly sunny. Near steady temperature in the lower 80s. Southeast Winds around 5 Mph.

Tonight 24 Jul Rockland

Partly cloudy. Patchy fog after midnight. Lows around 60. South Winds around 5 Mph in the Evening, becoming light and variable.

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Hillburn Reservoir Temperature Statistics

July Temperature

Caldwell, Essex County Airport (18 miles)

  • Lowest 20 July, 2026

    54 °F

  • Average July

    77 °F

  • Highest 2 July, 2026

    102 °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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