S
M
T
W
T
F
S
30
83°
70°
31
84°
73°
1
86°
72°
2
86°
70°
3
79°
67°
4
83°
69°
5
78°
64°
6
73°
62°
7
79°
67°
8
79°
65°
9
76°
69°
10
78°
67°
11
74°
61°
12
75°
60°
13
75°
61°
14
78°
64°
15
80°
66°
16
80°
67°
17
79°
67°
18
80°
68°
19
80°
67°
20
77°
67°
21
79°
65°
22
79°
66°
23
78°
66°
24
79°
64°
25
75°
62°
26
71°
58°
27
71°
59°
28
74°
60°
29
76°
62°
30
76°
62°
1
75°
61°
2
74°
62°
3
76°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in New York
New York's September 2026 forecast shows daily high temperatures ranging from 71° to 86°, with overnight lows between 58° and 73°. The average high for September is 78° with an average low of 65°. 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 New York. See also: October | November | December.
