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°
64°
7
78°
61°
8
80°
62°
9
82°
68°
10
84°
69°
11
79°
67°
12
78°
63°
13
79°
68°
14
75°
63°
15
72°
57°
16
77°
58°
17
82°
70°
18
80°
69°
19
69°
63°
20
69°
62°
21
72°
61°
22
68°
55°
23
67°
55°
24
66°
53°
25
70°
57°
26
63°
56°
27
62°
58°
28
67°
58°
29
72°
61°
30
75°
64°
1
78°
65°
2
75°
61°
3
71°
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 62° to 78°, with overnight lows between 56° and 65°. The average high for September is 70° with an average low of 60°. 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.
