S
M
T
W
T
F
S
26
79°
58°
27
77°
60°
28
76°
59°
29
76°
58°
30
82°
59°
31
75°
56°
1
80°
59°
2
83°
55°
3
79°
53°
4
75°
52°
5
74°
59°
6
74°
57°
7
81°
57°
8
81°
51°
9
76°
52°
10
81°
59°
11
81°
50°
12
75°
50°
13
73°
59°
14
82°
60°
15
80°
51°
16
79°
49°
17
72°
50°
18
72°
49°
19
75°
51°
20
78°
50°
21
70°
50°
22
72°
56°
23
75°
55°
24
74°
50°
25
75°
47°
26
69°
46°
27
68°
47°
28
69°
46°
29
68°
49°
30
70°
54°
31
68°
56°
1
76°
55°
2
75°
50°
3
74°
45°
4
71°
51°
5
74°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Quebec
Quebec's August 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 43° and 60°. The average high for August is 75° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Quebec. See also: September | October | November.