S
M
T
W
T
F
S
30
79°
66°
31
81°
69°
1
84°
69°
2
84°
68°
3
83°
62°
4
82°
61°
5
76°
61°
6
76°
67°
7
77°
67°
8
82°
66°
9
81°
67°
10
77°
66°
11
81°
65°
12
81°
66°
13
80°
67°
14
79°
67°
15
81°
66°
16
82°
62°
17
79°
65°
18
77°
59°
19
78°
58°
20
73°
56°
21
71°
55°
22
70°
62°
23
71°
59°
24
75°
55°
25
69°
54°
26
69°
54°
27
71°
56°
28
75°
60°
29
74°
58°
30
75°
57°
1
68°
59°
2
67°
52°
3
71°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Staten Island
Staten Island's September 2026 forecast shows daily high temperatures ranging from 67° to 84°, with overnight lows between 52° and 69°. The average high for September is 77° 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 Staten Island. See also: October | November | December.