S
M
T
W
T
F
S
30
70°
55°
31
70°
55°
1
69°
53°
2
66°
51°
3
64°
50°
4
65°
50°
5
66°
49°
6
68°
54°
7
68°
51°
8
69°
51°
9
69°
55°
10
68°
53°
11
67°
53°
12
64°
52°
13
66°
51°
14
64°
47°
15
62°
47°
16
62°
48°
17
63°
48°
18
62°
51°
19
62°
47°
20
61°
47°
21
61°
48°
22
62°
52°
23
64°
51°
24
65°
48°
25
64°
46°
26
62°
46°
27
61°
49°
28
60°
50°
29
60°
49°
30
59°
45°
1
59°
45°
2
60°
44°
3
58°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sound
Sound's September 2026 forecast shows daily high temperatures ranging from 58° to 70°, with overnight lows between 44° and 55°. The average high for September is 64° with an average low of 50°. 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 Sound. See also: October | November | December.
