S
M
T
W
T
F
S
30
81°
68°
31
80°
70°
1
85°
72°
2
81°
72°
3
82°
69°
4
82°
67°
5
77°
65°
6
78°
65°
7
78°
67°
8
80°
67°
9
80°
69°
10
81°
65°
11
81°
63°
12
75°
60°
13
75°
61°
14
79°
62°
15
73°
62°
16
73°
66°
17
75°
59°
18
71°
58°
19
70°
57°
20
72°
60°
21
75°
65°
22
78°
66°
23
79°
65°
24
78°
63°
25
76°
60°
26
76°
62°
27
77°
63°
28
76°
63°
29
77°
60°
30
69°
56°
1
66°
54°
2
69°
59°
3
74°
61°
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 66° to 85°, with overnight lows between 54° and 72°. The average high for September is 77° with an average low of 63°. 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.
