S
M
T
W
T
F
S
30
75°
53°
31
74°
49°
1
69°
51°
2
69°
58°
3
69°
60°
4
66°
61°
5
67°
57°
6
72°
50°
7
81°
51°
8
68°
51°
9
66°
51°
10
71°
54°
11
67°
51°
12
76°
47°
13
71°
55°
14
65°
44°
15
65°
54°
16
73°
52°
17
66°
50°
18
68°
47°
19
65°
48°
20
61°
44°
21
62°
42°
22
63°
47°
23
64°
46°
24
67°
47°
25
68°
49°
26
69°
41°
27
56°
45°
28
61°
43°
29
60°
40°
30
57°
35°
1
62°
44°
2
63°
45°
3
62°
44°
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 56° to 73°, with overnight lows between 35° and 55°. 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 Quebec. See also: October | November | December.
