South Mountain Reservation Weather Forecast

    • 63
    • 84

    Mostly Sunny

    • 64
    • 81

    Mostly Sunny

    • 68
    • 88

    Partly Sunny

    • 73
    • 91

    Mostly Sunny

    • 75
    • 95

    Chance Rain Showers

    • 73
    • 91

    Chance Thunderstorms

    • 71
    • 85

    Chance Thunderstorms

Today 21 Jul Western Essex

Mostly sunny. Near steady temperature in the mid 80s. Northwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 21 Jul Western Essex

Mostly clear. Lows in the lower 60s. North Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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South Mountain Reservation Temperature Statistics

July Temperature

Morristown Municipal (7.5 miles)

  • Lowest 5 July, 2025

    53.6 °F

  • Average July

    74 °F

  • Highest 8 July, 2025

    93.2 °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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