S
M
T
W
T
F
S
30
80°
67°
31
83°
70°
1
84°
70°
2
83°
69°
3
84°
65°
4
78°
65°
5
78°
69°
6
83°
67°
7
77°
65°
8
81°
66°
9
82°
69°
10
82°
68°
11
83°
60°
12
79°
67°
13
76°
66°
14
80°
68°
15
77°
67°
16
79°
66°
17
81°
67°
18
81°
66°
19
79°
67°
20
79°
58°
21
78°
55°
22
70°
64°
23
70°
64°
24
73°
63°
25
76°
65°
26
77°
56°
27
78°
54°
28
68°
54°
29
67°
58°
30
67°
54°
1
65°
54°
2
66°
60°
3
66°
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 65° to 84°, with overnight lows between 54° and 70°. The average high for September is 77° with an average low of 64°. 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.
