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°
50°
15
73°
54°
16
81°
63°
17
83°
66°
18
83°
58°
19
77°
60°
20
80°
57°
21
72°
55°
22
68°
51°
23
70°
53°
24
70°
51°
25
73°
52°
26
72°
53°
27
71°
54°
28
75°
53°
29
75°
51°
30
69°
47°
1
67°
48°
2
69°
52°
3
73°
48°
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 67° to 83°, with overnight lows between 47° and 66°. The average high for September is 74° with an average low of 54°. 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.
