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°
57°
14
64°
47°
15
65°
43°
16
76°
56°
17
67°
51°
18
65°
47°
19
64°
42°
20
60°
47°
21
62°
43°
22
61°
41°
23
64°
42°
24
68°
43°
25
70°
47°
26
68°
46°
27
68°
46°
28
66°
48°
29
68°
47°
30
66°
47°
1
65°
48°
2
66°
38°
3
55°
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 55° to 70°, with overnight lows between 34° and 48°. The average high for September is 65° with an average low of 44°. 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.
