S
M
T
W
T
F
S
26
33°
16°
27
45°
19°
28
49°
23°
29
55°
24°
30
61°
28°
1
60°
34°
2
62°
36°
3
62°
35°
4
52°
37°
5
51°
31°
6
62°
28°
7
61°
37°
8
60°
36°
9
61°
40°
10
60°
38°
11
54°
37°
12
63°
32°
13
59°
41°
14
53°
38°
15
49°
34°
16
38°
31°
17
44°
29°
18
50°
28°
19
51°
34°
20
46°
33°
21
57°
32°
22
59°
37°
23
62°
36°
24
61°
41°
25
66°
38°
26
62°
44°
27
71°
41°
28
79°
47°
29
74°
46°
30
62°
45°
31
54°
33°
1
56°
30°
2
66°
35°
3
64°
38°
4
69°
36°
5
64°
37°
6
65°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lake Louise
Lake Louise's May 2026 forecast shows daily high temperatures ranging from 54° to 79°, with overnight lows between 30° and 47°. The average high for May is 66° 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 May weather will actually feel in Lake Louise. See also: June | July | August.
