Passaic River Park Weather Forecast

    • 61
    • 70

    Rain Showers Likely

    • 59
    • 82

    Becoming Sunny

    • 55
    • 83

    Mostly Sunny

    • 52
    • 74

    Mostly Sunny

    • 56
    • 73

    Partly Sunny

    • 58
    • 77

    Partly Sunny

    • 60
    • 82

    Partly Sunny

Today 17 Sep Morris

Cloudy. A chance of Showers with a slight chance of Thunderstorms late this Morning, then Showers likely with a chance of Thunderstorms this afternoon. Highs in the upper 60s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 17 Sep Morris

Mostly cloudy. A chance of Showers and Thunderstorms this Evening, then a slight chance of Showers after midnight. Areas of fog. Lows around 60. Northeast Winds around 5 Mph. Chance of rain 50 percent.

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Passaic River Park Temperature Statistics

September Temperature

Morristown Municipal (7.5 miles)

  • Lowest 8 September, 2025

    44.6 °F

  • Average September

    64.7 °F

  • Highest 5 September, 2025

    86 °F

Climate (2020–Present)

Morristown Municipal (7.5 miles)

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  • Average Low 2020–2025

    43.4 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    64.3 °F
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