S
M
T
W
T
F
S
26
68°
47°
27
73°
53°
28
77°
55°
29
79°
55°
30
78°
56°
31
78°
55°
1
79°
54°
2
72°
54°
3
76°
53°
4
76°
54°
5
74°
54°
6
75°
53°
7
78°
54°
8
79°
54°
9
79°
55°
10
75°
45°
11
69°
46°
12
68°
46°
13
69°
48°
14
70°
44°
15
69°
45°
16
70°
43°
17
68°
42°
18
68°
43°
19
72°
50°
20
77°
52°
21
79°
52°
22
80°
46°
23
77°
42°
24
67°
39°
25
66°
42°
26
68°
47°
27
76°
49°
28
77°
49°
29
77°
48°
30
74°
43°
31
64°
45°
1
67°
44°
2
64°
45°
3
63°
40°
4
62°
42°
5
66°
46°
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 62° to 80°, with overnight lows between 39° and 56°. The average high for August is 72° with an average low of 48°. 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.
