S
M
T
W
T
F
S
30
78°
68°
31
79°
67°
1
78°
68°
2
77°
64°
3
77°
68°
4
78°
65°
5
76°
63°
6
73°
62°
7
74°
61°
8
75°
62°
9
75°
63°
10
77°
61°
11
74°
62°
12
73°
66°
13
75°
61°
14
77°
66°
15
80°
67°
16
76°
66°
17
75°
65°
18
79°
67°
19
78°
66°
20
78°
66°
21
75°
65°
22
70°
64°
23
70°
63°
24
71°
64°
25
69°
64°
26
76°
63°
27
77°
54°
28
66°
53°
29
65°
53°
30
66°
62°
1
74°
58°
2
67°
51°
3
69°
48°
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 65° to 80°, with overnight lows between 48° and 68°. The average high for September is 74° with an average low of 62°. 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.
