S
M
T
W
T
F
S
30
80°
59°
31
79°
57°
1
75°
54°
2
75°
55°
3
76°
56°
4
77°
56°
5
74°
57°
6
75°
57°
7
76°
57°
8
71°
56°
9
76°
58°
10
78°
59°
11
78°
57°
12
75°
55°
13
74°
56°
14
75°
56°
15
76°
57°
16
73°
55°
17
69°
52°
18
63°
48°
19
68°
54°
20
73°
52°
21
69°
53°
22
72°
52°
23
61°
46°
24
59°
45°
25
59°
41°
26
60°
46°
27
68°
50°
28
68°
51°
29
67°
50°
30
67°
48°
1
61°
43°
2
60°
49°
3
67°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hackensack
Hackensack's September 2026 forecast shows daily high temperatures ranging from 59° to 80°, with overnight lows between 41° and 59°. The average high for September is 71° with an average low of 53°. 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 Hackensack. See also: October | November | December.
