S
M
T
W
T
F
S
30
74°
52°
31
73°
49°
1
72°
51°
2
76°
51°
3
79°
48°
4
79°
50°
5
75°
49°
6
74°
49°
7
77°
48°
8
70°
46°
9
72°
50°
10
71°
49°
11
69°
42°
12
70°
43°
13
68°
44°
14
69°
43°
15
68°
41°
16
67°
42°
17
Hist. Avg.
66°
45°
18
Hist. Avg.
66°
44°
19
Hist. Avg.
66°
44°
20
Hist. Avg.
65°
44°
21
Hist. Avg.
65°
44°
22
Hist. Avg.
64°
44°
23
Hist. Avg.
64°
43°
24
Hist. Avg.
64°
43°
25
Hist. Avg.
63°
43°
26
Hist. Avg.
63°
43°
27
Hist. Avg.
63°
42°
28
Hist. Avg.
62°
42°
29
Hist. Avg.
62°
42°
30
Hist. Avg.
61°
42°
1
Hist. Avg.
61°
42°
2
Hist. Avg.
61°
41°
3
Hist. Avg.
60°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Campbell River 11
Campbell River 11's September 2026 forecast shows daily high temperatures ranging from 67° to 79°, with overnight lows between 41° and 52°. The average high for September is 72° with an average low of 47°. 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 Campbell River 11. See also: October | November | December.