S
M
T
W
T
F
S
30
79°
55°
31
75°
53°
1
74°
55°
2
74°
55°
3
75°
56°
4
74°
54°
5
73°
54°
6
72°
59°
7
73°
54°
8
73°
53°
9
74°
53°
10
73°
52°
11
72°
52°
12
71°
54°
13
73°
53°
14
72°
56°
15
74°
57°
16
76°
57°
17
77°
56°
18
77°
51°
19
70°
53°
20
72°
48°
21
Hist. Avg.
74°
51°
22
Hist. Avg.
73°
50°
23
Hist. Avg.
73°
50°
24
Hist. Avg.
73°
50°
25
Hist. Avg.
72°
49°
26
Hist. Avg.
72°
49°
27
Hist. Avg.
71°
48°
28
Hist. Avg.
71°
48°
29
Hist. Avg.
71°
48°
30
Hist. Avg.
70°
47°
1
Hist. Avg.
70°
47°
2
Hist. Avg.
69°
46°
3
Hist. Avg.
69°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Manhattan
Manhattan's September 2026 forecast shows daily high temperatures ranging from 70° to 79°, with overnight lows between 48° and 59°. 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 Manhattan. See also: October | November | December.
