S
M
T
W
T
F
S
26
72°
43°
27
72°
44°
28
73°
40°
29
72°
43°
30
73°
38°
31
66°
34°
1
63°
35°
2
63°
35°
3
64°
38°
4
65°
36°
5
64°
37°
6
69°
43°
7
70°
44°
8
63°
39°
9
64°
38°
10
66°
42°
11
71°
42°
12
71°
37°
13
61°
40°
14
63°
42°
15
65°
36°
16
61°
40°
17
60°
39°
18
61°
38°
19
62°
37°
20
63°
38°
21
62°
35°
22
61°
38°
23
66°
42°
24
60°
38°
25
59°
41°
26
Hist. Avg.
75°
47°
27
Hist. Avg.
75°
46°
28
Hist. Avg.
74°
46°
29
Hist. Avg.
74°
46°
30
Hist. Avg.
74°
46°
31
Hist. Avg.
73°
45°
1
Hist. Avg.
73°
45°
2
Hist. Avg.
73°
45°
3
Hist. Avg.
72°
45°
4
Hist. Avg.
72°
44°
5
Hist. Avg.
71°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Lake Louise
Lake Louise's August 2026 forecast shows daily high temperatures ranging from 59° to 73°, with overnight lows between 34° and 44°. The average high for August is 65° with an average low of 39°. 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 Lake Louise. See also: September | October | November.