S
M
T
W
T
F
S
30
87°
64°
31
78°
62°
1
78°
63°
2
79°
68°
3
78°
63°
4
79°
70°
5
83°
69°
6
84°
63°
7
81°
62°
8
76°
61°
9
76°
60°
10
75°
67°
11
78°
60°
12
79°
61°
13
73°
60°
14
74°
66°
15
77°
67°
16
81°
58°
17
81°
57°
18
71°
57°
19
70°
58°
20
71°
59°
21
70°
58°
22
69°
57°
23
68°
62°
24
70°
62°
25
70°
61°
26
75°
63°
27
75°
57°
28
76°
54°
29
68°
55°
30
68°
61°
1
67°
62°
2
72°
59°
3
73°
55°
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 67° to 87°, with overnight lows between 54° and 70°. The average high for September is 75° with an average low of 61°. 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.
