S
M
T
W
T
F
S
30
79°
58°
31
78°
57°
1
80°
57°
2
82°
59°
3
84°
59°
4
85°
60°
5
85°
62°
6
86°
59°
7
90°
62°
8
87°
68°
9
N/A
10
79°
65°
11
75°
65°
12
76°
64°
13
77°
63°
14
78°
62°
15
80°
60°
16
78°
63°
17
78°
63°
18
77°
64°
19
79°
65°
20
79°
63°
21
80°
64°
22
80°
66°
23
81°
67°
24
81°
66°
25
80°
67°
26
80°
67°
27
81°
68°
28
81°
68°
29
82°
67°
30
81°
68°
1
81°
68°
2
82°
67°
3
81°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cape Gloucester
Cape Gloucester's September 2026 forecast shows daily high temperatures ranging from 75° to 82°, with overnight lows between 60° and 69°. The average high for September is 79° with an average low of 65°. 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 Cape Gloucester. See also: October | November | December.
