S
M
T
W
T
F
S
30
79°
55°
31
79°
64°
1
86°
66°
2
70°
64°
3
88°
66°
4
84°
68°
5
77°
61°
6
77°
57°
7
79°
52°
8
81°
52°
9
84°
57°
10
86°
68°
11
79°
54°
12
79°
50°
13
82°
63°
14
73°
57°
15
73°
48°
16
80°
66°
17
81°
66°
18
83°
55°
19
71°
60°
20
68°
59°
21
69°
57°
22
68°
53°
23
69°
55°
24
74°
54°
25
73°
52°
26
72°
53°
27
72°
53°
28
71°
54°
29
72°
49°
30
69°
47°
1
67°
48°
2
73°
53°
3
66°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Parsippany
Parsippany's September 2026 forecast shows daily high temperatures ranging from 66° to 83°, with overnight lows between 47° and 66°. The average high for September is 72° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Parsippany. See also: October | November | December.
