High Mountain Park Preserve Weather Forecast

    • 8
    • 21

    Increasing Clouds

    • 12
    • 24

    Mostly Cloudy

    • 11
    • 29

    Mostly Sunny

    • 15
    • 31

    Partly Sunny

    • 13
    • 29

    Mostly Cloudy

    • 8
    • 26

    Slight Chance Snow

Today 31 Jan Eastern Passaic

Mostly sunny. Cold with Highs in the lower 20s. North Winds around 5 Mph. Wind chill Values as low as 1 below in the morning.

Tonight 31 Jan Eastern Passaic

Mostly cloudy. Lows around 10 above. North Winds 5 to 10 Mph, increasing to 15 to 20 Mph with Gusts up to 35 Mph after midnight. Wind chill Values as low as 7 below after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

High Mountain Park Preserve Temperature Statistics

January Temperature

Caldwell, Essex County Airport (7.5 miles)

  • Lowest 21 January, 2026

    5 °F

  • Average January

    29.6 °F

  • Highest 9 January, 2026

    52 °F

Climate (2021–Present)

Caldwell, Essex County Airport (7.5 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    56.1 °F

  • Average High 2021–2026

    65.3 °F
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