High Mountain Park Preserve Weather Forecast

    • 66
    • 84

    Partly Sunny

    • 71
    • 89

    Mostly Sunny

    • 73
    • 95

    Chance Rain Showers

    • 70
    • 88

    Chance Thunderstorms

    • 69
    • 82

    Chance Thunderstorms

    • 69
    • 87

    Slight Chance Thunderstorms

Today 23 Jul Eastern Passaic

Mostly sunny. Highs in the upper 80s. East Winds around 5 Mph, becoming south in the afternoon.

Tonight 23 Jul Eastern Passaic

Mostly clear. Lows in the mid 60s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

High Mountain Park Preserve Temperature Statistics

July Temperature

Caldwell, Essex County Airport (7.5 miles)

  • Lowest 5 July, 2025

    59.6 °F

  • Average July

    80.1 °F

  • Highest 8 July, 2025

    94.6 °F

Climate (2020–Present)

Caldwell, Essex County Airport (7.5 miles)

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  • Average Low 2020–2025

    47.2 °F

  • Average 2020–2025

    56.4 °F

  • Average High 2020–2025

    65.6 °F
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