S
M
T
W
T
F
S
26
77°
50°
27
77°
51°
28
78°
49°
29
69°
41°
30
68°
40°
31
68°
43°
1
70°
43°
2
74°
48°
3
77°
50°
4
78°
50°
5
78°
49°
6
77°
51°
7
78°
51°
8
78°
49°
9
76°
50°
10
77°
45°
11
76°
51°
12
76°
42°
13
73°
47°
14
74°
52°
15
78°
49°
16
75°
46°
17
67°
46°
18
71°
40°
19
66°
40°
20
67°
42°
21
66°
44°
22
69°
49°
23
73°
44°
24
68°
41°
25
64°
39°
26
64°
45°
27
67°
44°
28
69°
42°
29
63°
38°
30
63°
39°
31
67°
40°
1
71°
37°
2
63°
35°
3
Hist. Avg.
67°
43°
4
Hist. Avg.
66°
42°
5
Hist. Avg.
66°
42°
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 63° to 78°, with overnight lows between 35° and 52°. The average high for August is 72° 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.
