S
M
T
W
T
F
S
26
85°
57°
27
84°
55°
28
86°
55°
29
81°
54°
30
79°
51°
31
86°
56°
1
94°
55°
2
71°
47°
3
69°
47°
4
75°
53°
5
77°
55°
6
71°
50°
7
78°
53°
8
77°
53°
9
70°
51°
10
69°
49°
11
68°
50°
12
72°
51°
13
72°
53°
14
76°
54°
15
75°
52°
16
77°
53°
17
78°
56°
18
78°
52°
19
79°
54°
20
79°
53°
21
76°
53°
22
76°
52°
23
75°
48°
24
73°
48°
25
66°
45°
26
75°
51°
27
76°
52°
28
76°
51°
29
75°
50°
30
64°
51°
31
69°
51°
1
73°
50°
2
67°
49°
3
67°
46°
4
68°
49°
5
73°
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 79°, with overnight lows between 45° and 56°. The average high for August is 73° with an average low of 51°. 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.
