S
M
T
W
T
F
S
26
60°
36°
27
58°
35°
28
65°
39°
29
62°
38°
30
62°
36°
1
65°
45°
2
51°
36°
3
52°
34°
4
53°
37°
5
57°
36°
6
58°
38°
7
57°
40°
8
53°
37°
9
52°
36°
10
52°
35°
11
54°
35°
12
55°
38°
13
56°
38°
14
57°
39°
15
55°
39°
16
55°
37°
17
56°
38°
18
58°
40°
19
59°
42°
20
57°
40°
21
56°
42°
22
58°
40°
23
57°
42°
24
57°
41°
25
58°
38°
26
58°
39°
27
59°
41°
28
59°
40°
29
60°
43°
30
59°
43°
31
62°
41°
1
67°
47°
2
66°
46°
3
68°
46°
4
69°
47°
5
68°
44°
6
64°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Whistler
Whistler's May 2026 forecast shows daily high temperatures ranging from 51° to 69°, with overnight lows between 34° and 47°. The average high for May is 59° with an average low of 40°. 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 Whistler. See also: June | July | August.