S
M
T
W
T
F
S
30
78°
65°
31
81°
65°
1
84°
64°
2
84°
65°
3
83°
64°
4
78°
62°
5
77°
62°
6
83°
58°
7
76°
61°
8
79°
63°
9
82°
64°
10
83°
62°
11
83°
55°
12
81°
60°
13
76°
60°
14
75°
63°
15
79°
62°
16
81°
62°
17
82°
61°
18
79°
61°
19
78°
62°
20
80°
54°
21
79°
51°
22
71°
59°
23
70°
56°
24
76°
59°
25
74°
60°
26
77°
54°
27
78°
50°
28
69°
49°
29
68°
55°
30
68°
52°
1
66°
51°
2
66°
52°
3
67°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Melville
Melville's September 2026 forecast shows daily high temperatures ranging from 66° to 84°, with overnight lows between 49° and 65°. The average high for September is 77° with an average low of 59°. 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 Melville. See also: October | November | December.
