S
M
T
W
T
F
S
26
79°
53°
27
79°
53°
28
77°
50°
29
78°
52°
30
79°
51°
31
78°
43°
1
71°
44°
2
71°
46°
3
73°
48°
4
71°
47°
5
74°
48°
6
78°
52°
7
74°
50°
8
70°
48°
9
71°
49°
10
76°
51°
11
78°
52°
12
79°
47°
13
70°
49°
14
71°
51°
15
77°
47°
16
69°
49°
17
66°
48°
18
69°
45°
19
68°
45°
20
69°
48°
21
72°
47°
22
Hist. Avg.
71°
46°
23
Hist. Avg.
70°
46°
24
Hist. Avg.
70°
45°
25
Hist. Avg.
70°
45°
26
Hist. Avg.
70°
45°
27
Hist. Avg.
69°
44°
28
Hist. Avg.
69°
44°
29
Hist. Avg.
69°
44°
30
Hist. Avg.
68°
44°
31
Hist. Avg.
68°
43°
1
Hist. Avg.
68°
43°
2
Hist. Avg.
68°
43°
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
*Temporarily Unavailable
August Weather in Calgary
Calgary's August 2026 forecast shows daily high temperatures ranging from 66° to 79°, with overnight lows between 43° and 53°. The average high for August is 74° with an average low of 49°. 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.
