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
53°
50°
14
58°
49°
15
74°
44°
16
75°
53°
17
74°
50°
18
80°
48°
19
78°
55°
20
76°
54°
21
79°
50°
22
82°
55°
23
78°
58°
24
75°
51°
25
76°
54°
26
81°
57°
27
86°
54°
28
75°
50°
29
70°
49°
30
68°
47°
31
69°
48°
1
71°
49°
2
70°
47°
3
67°
49°
4
71°
51°
5
64°
35°
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 86°, with overnight lows between 35° and 58°. The average high for August is 73° with an average low of 50°. 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.
