S
M
T
W
T
F
S
30
75°
53°
31
74°
49°
1
73°
54°
2
73°
58°
3
65°
58°
4
72°
55°
5
68°
52°
6
74°
52°
7
73°
53°
8
72°
52°
9
69°
51°
10
72°
51°
11
71°
51°
12
69°
52°
13
69°
50°
14
66°
46°
15
64°
50°
16
67°
50°
17
66°
48°
18
62°
44°
19
63°
42°
20
67°
49°
21
68°
50°
22
68°
50°
23
69°
48°
24
67°
47°
25
66°
48°
26
67°
46°
27
65°
47°
28
66°
42°
29
56°
40°
30
54°
37°
1
53°
37°
2
55°
45°
3
60°
45°
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 74°, with overnight lows between 37° and 58°. The average high for September is 66° with an average low of 48°. 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.
