S
M
T
W
T
F
S
30
73°
56°
31
75°
54°
1
73°
49°
2
68°
47°
3
69°
50°
4
73°
54°
5
73°
55°
6
72°
54°
7
66°
50°
8
67°
46°
9
68°
46°
10
72°
52°
11
72°
53°
12
68°
50°
13
68°
54°
14
70°
51°
15
68°
43°
16
62°
43°
17
61°
49°
18
62°
51°
19
69°
50°
20
68°
46°
21
70°
40°
22
68°
38°
23
67°
42°
24
66°
49°
25
Hist. Avg.
58°
42°
26
Hist. Avg.
58°
41°
27
Hist. Avg.
58°
41°
28
Hist. Avg.
57°
41°
29
Hist. Avg.
57°
41°
30
Hist. Avg.
57°
40°
1
Hist. Avg.
56°
40°
2
Hist. Avg.
56°
40°
3
Hist. Avg.
56°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cache Bay
Cache Bay's September 2026 forecast shows daily high temperatures ranging from 61° to 75°, with overnight lows between 38° and 56°. The average high for September is 69° with an average low of 49°. 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 Cache Bay. See also: October | November | December.
