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
76°
47°
8
76°
51°
9
73°
51°
10
68°
57°
11
66°
52°
12
62°
50°
13
56°
47°
14
63°
48°
15
69°
52°
16
74°
54°
17
76°
53°
18
75°
54°
19
69°
51°
20
73°
54°
21
72°
54°
22
70°
54°
23
82°
58°
24
71°
51°
25
75°
51°
26
75°
52°
27
74°
52°
28
64°
51°
29
68°
52°
30
65°
51°
31
68°
50°
1
69°
50°
2
68°
49°
3
64°
49°
4
63°
45°
5
65°
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 56° to 82°, with overnight lows between 45° and 58°. The average high for August is 69° 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.
