S
M
T
W
T
F
S
26
80°
55°
27
78°
54°
28
78°
55°
29
80°
56°
30
81°
57°
31
80°
54°
1
70°
52°
2
74°
54°
3
79°
55°
4
80°
56°
5
80°
54°
6
74°
51°
7
74°
54°
8
78°
53°
9
79°
54°
10
77°
54°
11
69°
53°
12
67°
53°
13
67°
52°
14
68°
53°
15
70°
53°
16
72°
52°
17
70°
53°
18
69°
53°
19
75°
52°
20
78°
52°
21
78°
52°
22
78°
49°
23
75°
42°
24
70°
40°
25
65°
39°
26
63°
40°
27
64°
41°
28
66°
44°
29
72°
50°
30
74°
46°
31
65°
43°
1
65°
45°
2
68°
42°
3
64°
45°
4
71°
48°
5
73°
45°
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 63° to 81°, with overnight lows between 39° and 57°. The average high for August is 73° with an average low of 50°. 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.
