S
M
T
W
T
F
S
30
81°
51°
31
82°
52°
1
82°
52°
2
81°
51°
3
81°
52°
4
80°
52°
5
80°
51°
6
79°
50°
7
77°
50°
8
78°
51°
9
73°
48°
10
74°
47°
11
72°
49°
12
75°
50°
13
79°
48°
14
78°
46°
15
77°
48°
16
76°
46°
17
76°
48°
18
75°
45°
19
73°
44°
20
69°
46°
21
75°
46°
22
76°
45°
23
74°
46°
24
74°
45°
25
69°
43°
26
72°
40°
27
72°
39°
28
71°
42°
29
71°
43°
30
72°
43°
1
69°
37°
2
68°
38°
3
69°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Manhattan
Manhattan's September 2026 forecast shows daily high temperatures ranging from 68° to 82°, with overnight lows between 37° and 52°. The average high for September is 75° with an average low of 46°. 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 Manhattan. See also: October | November | December.
