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
70°
49°
7
80°
53°
8
69°
46°
9
65°
58°
10
74°
50°
11
69°
48°
12
73°
55°
13
75°
53°
14
69°
50°
15
67°
49°
16
66°
48°
17
64°
47°
18
64°
48°
19
65°
44°
20
69°
48°
21
58°
46°
22
58°
45°
23
66°
47°
24
67°
48°
25
66°
47°
26
66°
43°
27
60°
38°
28
64°
45°
29
65°
46°
30
67°
48°
1
67°
47°
2
66°
46°
3
63°
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 58° to 80°, with overnight lows between 38° and 58°. The average high for September is 67° 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.
