S
M
T
W
T
F
S
30
79°
62°
31
77°
68°
1
78°
66°
2
75°
65°
3
85°
70°
4
84°
70°
5
80°
66°
6
73°
60°
7
80°
59°
8
81°
66°
9
81°
71°
10
82°
66°
11
78°
61°
12
76°
64°
13
80°
66°
14
82°
62°
15
79°
65°
16
78°
61°
17
75°
60°
18
75°
59°
19
74°
60°
20
76°
56°
21
76°
60°
22
69°
60°
23
69°
59°
24
70°
59°
25
71°
57°
26
72°
57°
27
69°
53°
28
68°
57°
29
74°
58°
30
75°
58°
1
74°
57°
2
73°
58°
3
72°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in East Patchogue
East Patchogue's September 2026 forecast shows daily high temperatures ranging from 68° to 82°, with overnight lows between 53° and 71°. The average high for September is 75° 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 East Patchogue. See also: October | November | December.