S
M
T
W
T
F
S
26
85°
52°
27
86°
56°
28
86°
52°
29
85°
56°
30
84°
53°
31
86°
53°
1
87°
55°
2
90°
56°
3
88°
54°
4
89°
59°
5
88°
56°
6
86°
54°
7
85°
54°
8
90°
61°
9
91°
57°
10
85°
55°
11
85°
58°
12
Hist. Avg.
88°
49°
13
Hist. Avg.
88°
48°
14
Hist. Avg.
88°
48°
15
Hist. Avg.
88°
48°
16
Hist. Avg.
88°
48°
17
Hist. Avg.
87°
48°
18
Hist. Avg.
87°
47°
19
Hist. Avg.
87°
47°
20
Hist. Avg.
87°
47°
21
Hist. Avg.
86°
47°
22
Hist. Avg.
86°
46°
23
Hist. Avg.
86°
46°
24
Hist. Avg.
86°
46°
25
Hist. Avg.
86°
46°
26
Hist. Avg.
85°
46°
27
Hist. Avg.
85°
45°
28
Hist. Avg.
85°
45°
29
Hist. Avg.
84°
45°
30
Hist. Avg.
84°
44°
31
Hist. Avg.
84°
44°
1
Hist. Avg.
84°
44°
2
Hist. Avg.
83°
44°
3
Hist. Avg.
83°
43°
4
Hist. Avg.
83°
43°
5
Hist. Avg.
82°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in McGill
McGill's August 2026 forecast shows daily high temperatures ranging from 84° to 91°, with overnight lows between 52° and 61°. The average high for August is 87° with an average low of 55°. 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 McGill. See also: September | October | November.