S
M
T
W
T
F
S
30
74°
52°
31
72°
49°
1
71°
47°
2
72°
57°
3
69°
58°
4
66°
60°
5
66°
53°
6
72°
47°
7
79°
53°
8
79°
51°
9
64°
51°
10
67°
53°
11
66°
49°
12
73°
44°
13
70°
56°
14
63°
46°
15
64°
40°
16
72°
53°
17
67°
49°
18
64°
43°
19
61°
41°
20
59°
45°
21
62°
40°
22
61°
39°
23
66°
40°
24
70°
46°
25
69°
49°
26
66°
55°
27
64°
49°
28
59°
48°
29
64°
51°
30
65°
53°
1
69°
52°
2
64°
50°
3
62°
49°
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 59° to 70°, with overnight lows between 40° and 55°. The average high for September is 65° 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 Cap-Rouge. See also: October | November | December.
