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
77°
48°
5
79°
56°
6
65°
53°
7
75°
51°
8
77°
54°
9
74°
53°
10
70°
52°
11
67°
52°
12
62°
49°
13
62°
47°
14
66°
48°
15
74°
57°
16
72°
56°
17
73°
54°
18
72°
56°
19
74°
56°
20
84°
57°
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 62° to 84°, with overnight lows between 45° and 57°. The average high for August is 72° 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.
