S
M
T
W
T
F
S
26
80°
48°
27
73°
47°
28
75°
55°
29
80°
54°
30
82°
56°
31
81°
54°
1
80°
50°
2
78°
51°
3
76°
50°
4
75°
54°
5
75°
53°
6
80°
55°
7
80°
52°
8
79°
51°
9
76°
46°
10
70°
45°
11
70°
44°
12
74°
51°
13
76°
50°
14
78°
43°
15
69°
41°
16
66°
44°
17
69°
44°
18
70°
45°
19
71°
47°
20
70°
49°
21
73°
43°
22
67°
43°
23
67°
45°
24
68°
45°
25
68°
41°
26
67°
47°
27
73°
44°
28
73°
44°
29
65°
41°
30
65°
43°
31
66°
47°
1
68°
49°
2
74°
44°
3
64°
41°
4
65°
45°
5
67°
41°
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 82°, with overnight lows between 41° and 56°. The average high for August is 72° with an average low of 47°. 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.
