S
M
T
W
T
F
S
30
83°
62°
31
82°
65°
1
81°
62°
2
82°
64°
3
81°
65°
4
80°
63°
5
80°
63°
6
79°
62°
7
79°
62°
8
78°
61°
9
78°
62°
10
77°
62°
11
80°
61°
12
79°
61°
13
79°
62°
14
78°
61°
15
77°
62°
16
78°
60°
17
77°
60°
18
75°
58°
19
74°
51°
20
69°
55°
21
69°
59°
22
70°
50°
23
69°
50°
24
68°
52°
25
70°
57°
26
73°
54°
27
68°
51°
28
67°
50°
29
66°
50°
30
67°
49°
1
67°
55°
2
68°
55°
3
68°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Center Moriches
Center Moriches's September 2026 forecast shows daily high temperatures ranging from 66° to 83°, with overnight lows between 48° and 65°. The average high for September is 75° with an average low of 58°. 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 Center Moriches. See also: October | November | December.