Allamuchy Mountain Park Weather Forecast

    • 57
    • 84

    Sunny

    • 51
    • 82

    Mostly Sunny

    • 50
    • 74

    Mostly Sunny

    • 51
    • 73

    Partly Sunny

    • 59
    • 78

    Partly Sunny

    • 60
    • 83

    Slight Chance Rain Showers

    • 58
    • 81

    Chance Rain Showers

Today 18 Sep Sussex

Areas of fog this morning. Mostly sunny. Warmer with Highs in the lower 80s. Northwest Winds 5 to 10 Mph.

Tonight 18 Sep Sussex

Clear. Lows in the upper 50s. Northwest Winds around 5 Mph.

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  • Temperature Real-Time

Allamuchy Mountain Park Temperature Statistics

September Temperature

Andover, Aeroflex-Andover Airport (5 miles)

  • Lowest 8 September, 2025

    46 °F

  • Average September

    64.7 °F

  • Highest 6 September, 2025

    82.9 °F

Climate (2020–Present)

Andover, Aeroflex-Andover Airport (5 miles)

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  • Average Low 2020–2025

    44.1 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    63.9 °F
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