S
M
T
W
T
F
S
30
77°
55°
31
76°
54°
1
76°
54°
2
75°
51°
3
72°
47°
4
67°
44°
5
66°
52°
6
67°
53°
7
71°
53°
8
73°
51°
9
74°
52°
10
72°
44°
11
71°
43°
12
73°
51°
13
73°
52°
14
71°
50°
15
71°
49°
16
67°
42°
17
63°
48°
18
67°
42°
19
62°
46°
20
62°
45°
21
59°
40°
22
59°
43°
23
60°
44°
24
58°
40°
25
57°
39°
26
58°
38°
27
57°
40°
28
58°
36°
29
56°
37°
30
57°
35°
1
56°
37°
2
55°
34°
3
53°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Quebec
Quebec's September 2026 forecast shows daily high temperatures ranging from 53° to 77°, with overnight lows between 34° and 55°. The average high for September is 65° with an average low of 45°. 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 Quebec. See also: October | November | December.
