Hillburn Reservoir Weather Forecast

    • 48
    • 63

    Mostly Cloudy

    • 45
    • 65

    Partly Sunny

    • 47
    • 65

    Partly Sunny

    • 50
    • 66

    Chance Rain Showers

    • 50
    • 62

    Chance Rain Showers

    • 51
    • 63

    Partly Sunny

    • 51
    • 66

    Partly Sunny

Today 22 Sep Rockland

Mostly sunny. Highs around 70.

Tonight 22 Sep Rockland

Mostly cloudy. Lows around 50. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hillburn Reservoir Temperature Statistics

September Temperature

Caldwell, Essex County Airport (18 miles)

  • Lowest 15 September, 2026

    51.1 °F

  • Average September

    70.5 °F

  • Highest 3 September, 2026

    86 °F

Climate (2021–2026)

Caldwell, Essex County Airport (18 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    55.9 °F

  • Average High 2021–2026

    65.1 °F
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