S
M
T
W
T
F
S
30
75°
49°
31
74°
47°
1
73°
49°
2
73°
47°
3
66°
43°
4
65°
40°
5
65°
49°
6
66°
50°
7
70°
49°
8
72°
49°
9
71°
48°
10
67°
40°
11
69°
41°
12
71°
47°
13
71°
48°
14
70°
45°
15
69°
45°
16
66°
40°
17
61°
44°
18
66°
38°
19
59°
42°
20
61°
42°
21
58°
37°
22
57°
39°
23
58°
40°
24
57°
38°
25
56°
37°
26
55°
35°
27
57°
34°
28
56°
32°
29
55°
33°
30
56°
31°
1
55°
34°
2
55°
31°
3
53°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kamouraska
Kamouraska's September 2026 forecast shows daily high temperatures ranging from 53° to 75°, with overnight lows between 31° and 50°. The average high for September is 64° with an average low of 41°. 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 Kamouraska. See also: October | November | December.
