Chatham Weather Forecast
- 56
- 81
Partly Sunny
- 60
- 73
Chance Rain Showers
- 58
- 70
Rain Showers
- 54
- 67
Chance Rain Showers
- 50
- 60
Chance Rain Showers
- 50
- 60
Chance Rain Showers
Today 18 Sep Morris
Sunny. Highs in the upper 70s. North Winds 5 to 10 Mph.
Tonight 18 Sep Morris
Mostly clear in the Evening, then becoming partly cloudy. Cooler with Lows in the mid 50s. North Winds around 5 Mph.
Chatham Temperature Statistics
September Temperature
Morristown Municipal (4.3 miles)
Lowest 15 September, 2026
48.2 °FAverage September
67.5 °FHighest 3 September, 2026
87.8 °F
Climate (2021–2026)
Morristown Municipal (4.3 miles)
Average Low 2021–2026
43.1 °FAverage 2021–2026
51.8 °FAverage High 2021–2026
63.9 °F