S
M
T
W
T
F
S
30
66°
46°
31
66°
47°
1
68°
53°
2
72°
55°
3
73°
55°
4
70°
56°
5
65°
54°
6
73°
51°
7
64°
46°
8
63°
45°
9
67°
44°
10
70°
50°
11
71°
52°
12
64°
51°
13
63°
52°
14
70°
53°
15
72°
51°
16
70°
52°
17
68°
53°
18
65°
51°
19
67°
46°
20
64°
49°
21
66°
41°
22
62°
39°
23
57°
40°
24
57°
40°
25
60°
41°
26
56°
37°
27
55°
37°
28
55°
42°
29
57°
37°
30
53°
37°
1
54°
38°
2
52°
35°
3
52°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cap-Rouge
Cap-Rouge's September 2026 forecast shows daily high temperatures ranging from 52° to 73°, with overnight lows between 35° and 56°. The average high for September is 64° with an average low of 46°. 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 Cap-Rouge. See also: October | November | December.
