South Mountain Reservation Weather Forecast

    • 45
    • 61

    Becoming Sunny

    • 40
    • 58

    Mostly Sunny

    • 40
    • 59

    Mostly Sunny

    • 40
    • 57

    Partly Sunny

    • 38
    • 56

    Partly Sunny

    • 38
    • 53

    Mostly Sunny

    • 40
    • 55

    Partly Sunny

Today 22 Oct Western Essex

Sunny. Highs in the lower 60s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 22 Oct Western Essex

Mostly clear. Lows in the mid 40s. Southwest Winds 5 to 10 Mph.

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South Mountain Reservation Temperature Statistics

October Temperature

Morristown Municipal (7.5 miles)

  • Lowest 10 October, 2025

    30.2 °F

  • Average October

    57.8 °F

  • Highest 5 October, 2025

    86 °F

Climate (2020–Present)

Morristown Municipal (7.5 miles)

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  • Average Low 2020–2025

    43.5 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    64.3 °F
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