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°
56°
11
63°
53°
12
60°
52°
13
52°
50°
14
62°
46°
15
71°
50°
16
76°
52°
17
73°
52°
18
73°
54°
19
78°
53°
20
80°
56°
21
79°
52°
22
72°
56°
23
73°
55°
24
76°
55°
25
76°
56°
26
73°
45°
27
74°
52°
28
74°
50°
29
68°
49°
30
68°
50°
31
72°
50°
1
74°
49°
2
73°
50°
3
73°
50°
4
72°
49°
5
73°
50°
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 80°, 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.
