S
M
T
W
T
F
S
26
89°
69°
27
82°
61°
28
81°
57°
29
80°
58°
30
83°
63°
31
79°
58°
1
80°
57°
2
79°
61°
3
79°
60°
4
78°
59°
5
77°
57°
6
76°
54°
7
74°
58°
8
75°
58°
9
73°
57°
10
73°
55°
11
72°
57°
12
72°
58°
13
73°
58°
14
76°
57°
15
72°
58°
16
72°
57°
17
71°
56°
18
72°
55°
19
73°
56°
20
78°
57°
21
75°
57°
22
76°
56°
23
79°
58°
24
79°
58°
25
78°
57°
26
78°
56°
27
71°
55°
28
69°
55°
29
75°
56°
30
78°
56°
31
78°
55°
1
77°
54°
2
67°
52°
3
67°
52°
4
71°
44°
5
71°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Alberta
Alberta's August 2026 forecast shows daily high temperatures ranging from 67° to 89°, with overnight lows between 42° and 69°. The average high for August is 76° with an average low of 57°. 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 Alberta. See also: September | October | November.