South Mountain Reservation Weather Forecast

    • 67
    • 95

    Rain Showers Likely

    • 66
    • 88

    Mostly Sunny

    • 63
    • 90

    Rain Showers Likely

    • 59
    • 79

    Partly Sunny

    • 60
    • 76

    Partly Sunny

    • 63
    • 79

    Chance Rain Showers

    • 67
    • 87

    Rain Showers Likely

Today 12 Jun Western Essex

Showers likely with a chance of Thunderstorms. Hot with Highs in the mid 90s. West Winds around 10 Mph with Gusts up to 25 Mph. Chance of rain 60 percent. Heat index Values up to 104.

Tonight 12 Jun Western Essex

Partly cloudy. Lows in the upper 60s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Mountain Reservation Temperature Statistics

June Temperature

Morristown Municipal (7.5 miles)

  • Lowest 2 June, 2026

    41 °F

  • Average June

    69.3 °F

  • Highest 5 June, 2026

    91.4 °F

Climate (2021–Present)

Morristown Municipal (7.5 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    64 °F
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