S
M
T
W
T
F
S
30
79°
67°
31
78°
69°
1
82°
67°
2
71°
65°
3
84°
67°
4
84°
71°
5
79°
68°
6
76°
61°
7
79°
63°
8
82°
66°
9
83°
71°
10
81°
64°
11
77°
60°
12
76°
66°
13
79°
67°
14
83°
66°
15
82°
66°
16
75°
62°
17
73°
63°
18
76°
62°
19
74°
61°
20
78°
63°
21
76°
65°
22
69°
64°
23
70°
64°
24
70°
63°
25
72°
60°
26
75°
60°
27
71°
57°
28
70°
60°
29
75°
63°
30
76°
63°
1
75°
62°
2
74°
63°
3
73°
59°
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 69° to 83°, with overnight lows between 57° and 71°. The average high for September is 76° 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.
