S
M
T
W
T
F
S
26
73°
45°
27
76°
48°
28
77°
48°
29
75°
47°
30
72°
49°
31
76°
49°
1
77°
51°
2
76°
51°
3
77°
50°
4
77°
50°
5
76°
51°
6
77°
50°
7
73°
48°
8
70°
50°
9
76°
50°
10
77°
47°
11
77°
43°
12
74°
43°
13
72°
47°
14
74°
48°
15
74°
47°
16
70°
46°
17
74°
50°
18
74°
47°
19
68°
45°
20
72°
42°
21
66°
43°
22
70°
44°
23
74°
50°
24
74°
44°
25
68°
38°
26
63°
39°
27
62°
40°
28
63°
37°
29
62°
38°
30
64°
37°
31
63°
41°
1
63°
41°
2
64°
44°
3
62°
41°
4
62°
38°
5
63°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Banff
Banff's August 2026 forecast shows daily high temperatures ranging from 62° to 77°, with overnight lows between 34° and 51°. The average high for August is 71° with an average low of 45°. 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 Banff. See also: September | October | November.
