S
M
T
W
T
F
S
26
61°
54°
27
63°
55°
28
64°
55°
29
63°
55°
30
59°
52°
31
N/A
1
63°
50°
2
64°
48°
3
63°
55°
4
62°
55°
5
62°
51°
6
63°
48°
7
62°
53°
8
63°
54°
9
63°
54°
10
65°
57°
11
64°
55°
12
65°
56°
13
65°
54°
14
65°
56°
15
66°
57°
16
65°
56°
17
64°
56°
18
63°
55°
19
64°
55°
20
61°
54°
21
61°
54°
22
60°
53°
23
60°
55°
24
61°
55°
25
62°
54°
26
62°
55°
27
61°
54°
28
61°
55°
29
60°
54°
30
61°
53°
31
59°
51°
1
59°
53°
2
60°
52°
3
58°
51°
4
57°
51°
5
58°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Calgary
Calgary's August 2026 forecast shows daily high temperatures ranging from 57° to 66°, with overnight lows between 48° and 57°. The average high for August is 62° with an average low of 54°. 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 Calgary. See also: September | October | November.
