S
M
T
W
T
F
S
26
84°
56°
27
83°
54°
28
83°
54°
29
80°
53°
30
83°
56°
31
89°
60°
1
86°
56°
2
71°
54°
3
74°
51°
4
78°
50°
5
85°
59°
6
79°
55°
7
80°
56°
8
80°
55°
9
79°
55°
10
78°
54°
11
79°
55°
12
78°
55°
13
77°
54°
14
78°
55°
15
76°
54°
16
78°
54°
17
79°
55°
18
79°
54°
19
77°
54°
20
78°
55°
21
77°
54°
22
78°
53°
23
73°
52°
24
76°
52°
25
76°
53°
26
77°
53°
27
78°
54°
28
79°
53°
29
76°
52°
30
64°
51°
31
64°
50°
1
71°
51°
2
75°
52°
3
73°
51°
4
74°
49°
5
74°
49°
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 64° to 89°, with overnight lows between 49° and 60°. The average high for August is 78° 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.
