S
M
T
W
T
F
S
30
82°
62°
31
82°
62°
1
81°
61°
2
80°
61°
3
81°
60°
4
82°
60°
5
81°
59°
6
82°
61°
7
83°
61°
8
80°
60°
9
77°
59°
10
80°
59°
11
81°
58°
12
78°
58°
13
79°
57°
14
68°
46°
15
68°
55°
16
71°
52°
17
70°
51°
18
69°
50°
19
74°
49°
20
77°
54°
21
76°
54°
22
75°
50°
23
75°
43°
24
69°
44°
25
70°
52°
26
70°
50°
27
69°
40°
28
69°
40°
29
64°
46°
30
66°
50°
1
66°
49°
2
71°
51°
3
72°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Gotham
Gotham's September 2026 forecast shows daily high temperatures ranging from 64° to 83°, with overnight lows between 40° and 62°. The average high for September is 75° 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 Gotham. See also: October | November | December.
