S
M
T
W
T
F
S
26
76°
53°
27
76°
54°
28
79°
54°
29
79°
46°
30
71°
45°
31
71°
48°
1
73°
46°
2
76°
47°
3
76°
50°
4
79°
51°
5
79°
50°
6
78°
53°
7
79°
54°
8
79°
54°
9
80°
55°
10
81°
50°
11
78°
54°
12
79°
51°
13
79°
50°
14
78°
55°
15
80°
51°
16
75°
51°
17
75°
50°
18
76°
46°
19
73°
44°
20
70°
43°
21
69°
45°
22
73°
52°
23
76°
49°
24
74°
47°
25
68°
43°
26
67°
50°
27
72°
47°
28
74°
44°
29
65°
38°
30
64°
43°
31
66°
42°
1
73°
44°
2
71°
39°
3
Hist. Avg.
67°
43°
4
Hist. Avg.
67°
42°
5
Hist. Avg.
67°
42°
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 81°, with overnight lows between 38° and 55°. The average high for August is 75° with an average low of 48°. 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.
