Allamuchy Mountain Park Weather Forecast

    • 22
    • 38

    Mostly Sunny

    • 20
    • 38

    Mostly Cloudy

    • 9
    • 28

    Partly Sunny

    • 24
    • 30

    Mostly Cloudy

    • 29
    • 41

    Chance Rain

    • 24
    • 39

    Chance Rain/Snow

    • 17
    • 37

    Chance Snow

Today 6 Dec Sussex

Mostly cloudy late this Morning, then becoming partly sunny. Not as cool with Highs in the upper 30s. Southwest Winds around 5 Mph.

Tonight 6 Dec Sussex

Partly cloudy. Cold with Lows in the lower 20s. West Winds around 5 Mph.

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  • Temperature Real-Time

Allamuchy Mountain Park Temperature Statistics

December Temperature

Andover, Aeroflex-Andover Airport (5 miles)

  • Lowest 4 December, 2025

    19 °F

  • Average December

    30.3 °F

  • Highest 1 December, 2025

    41 °F

Climate (2020–Present)

Andover, Aeroflex-Andover Airport (5 miles)

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  • Average Low 2020–2025

    44 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    63.8 °F
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