High Mountain Park Preserve Weather Forecast

    • 63
    • 86

    Rain Showers Likely

    • 59
    • 80

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

    • 60
    • 80

    Mostly Cloudy

    • 60
    • 78

    Rain Showers

    • 63
    • 81

    Mostly Sunny

Today 18 Jun Eastern Passaic

Mostly cloudy with a chance of Showers in the Morning, then partly sunny with Showers likely with a chance of Thunderstorms in the afternoon. Humid with Highs in the upper 80s. South Winds 10 to 15 Mph, becoming southwest in the afternoon. Gusts up to 35 Mph. Chance of rain 60 percent.

Tonight 18 Jun Eastern Passaic

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the mid 60s. West Winds 10 to 15 Mph. Gusts up to 35 Mph, decreasing to 25 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

High Mountain Park Preserve Temperature Statistics

June Temperature

Caldwell, Essex County Airport (7.5 miles)

  • Lowest 2 June, 2026

    46.9 °F

  • Average June

    72.9 °F

  • Highest 11 June, 2026

    93.9 °F

Climate (2021–2026)

Caldwell, Essex County Airport (7.5 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    56 °F

  • Average High 2021–2026

    65.3 °F
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