S
M
T
W
T
F
S
30
78°
48°
31
72°
45°
1
68°
44°
2
67°
46°
3
67°
44°
4
66°
46°
5
66°
44°
6
67°
43°
7
70°
45°
8
75°
48°
9
73°
48°
10
71°
51°
11
65°
50°
12
67°
48°
13
72°
43°
14
71°
42°
15
69°
43°
16
63°
46°
17
62°
42°
18
66°
48°
19
61°
40°
20
70°
47°
21
63°
39°
22
60°
38°
23
Hist. Avg.
61°
42°
24
Hist. Avg.
60°
42°
25
Hist. Avg.
60°
41°
26
Hist. Avg.
60°
41°
27
Hist. Avg.
59°
41°
28
Hist. Avg.
59°
40°
29
Hist. Avg.
59°
40°
30
Hist. Avg.
58°
40°
1
Hist. Avg.
58°
39°
2
Hist. Avg.
57°
39°
3
Hist. Avg.
57°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Quebec
Quebec's September 2026 forecast shows daily high temperatures ranging from 60° to 78°, with overnight lows between 38° and 51°. The average high for September is 68° 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.
