S
M
T
W
T
F
S
26
76°
56°
27
76°
53°
28
77°
55°
29
76°
53°
30
76°
54°
31
79°
55°
1
80°
55°
2
80°
62°
3
79°
62°
4
78°
60°
5
81°
57°
6
79°
60°
7
82°
61°
8
82°
62°
9
81°
64°
10
82°
62°
11
84°
53°
12
80°
53°
13
77°
56°
14
79°
57°
15
74°
57°
16
82°
60°
17
74°
59°
18
81°
55°
19
Hist. Avg.
76°
56°
20
Hist. Avg.
76°
56°
21
Hist. Avg.
75°
56°
22
Hist. Avg.
75°
56°
23
Hist. Avg.
75°
55°
24
Hist. Avg.
74°
55°
25
Hist. Avg.
74°
55°
26
Hist. Avg.
74°
54°
27
Hist. Avg.
73°
54°
28
Hist. Avg.
73°
54°
29
Hist. Avg.
73°
53°
30
Hist. Avg.
72°
53°
31
Hist. Avg.
72°
53°
1
Hist. Avg.
72°
53°
2
Hist. Avg.
71°
52°
3
Hist. Avg.
71°
52°
4
Hist. Avg.
71°
52°
5
Hist. Avg.
70°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Gatineau
Gatineau's August 2026 forecast shows daily high temperatures ranging from 74° to 84°, with overnight lows between 53° and 64°. The average high for August is 79° with an average low of 58°. 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 Gatineau. See also: September | October | November.
