Passaic River Park Weather Forecast
- 55
- 71
Chance Rain
- 49
- 64
Chance Rain
- 49
- 64
Mostly Cloudy
- 49
- 64
Mostly Cloudy
- 50
- 65
Chance Rain Showers
- 51
- 68
Chance Rain Showers
Today 21 Sep Morris
Mostly sunny. Highs in the upper 60s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph.
Tonight 21 Sep Morris
Mostly cloudy. A chance of Showers after midnight. Lows in the lower 50s. Northeast Winds 5 to 10 Mph. Chance of rain 50 percent.
Passaic River Park Temperature Statistics
September Temperature
Morristown Municipal (7.5 miles)
Lowest 15 September, 2026
48.2 °FAverage September
67.6 °FHighest 3 September, 2026
87.8 °F
Climate (2021–2026)
Morristown Municipal (7.5 miles)
Average Low 2021–2026
43.1 °FAverage 2021–2026
51.8 °FAverage High 2021–2026
63.9 °F