S
M
T
W
T
F
S
26
64°
30°
27
64°
33°
28
56°
43°
29
72°
43°
30
72°
36°
1
72°
40°
2
78°
38°
3
83°
40°
4
80°
42°
5
80°
43°
6
63°
44°
7
69°
49°
8
63°
48°
9
68°
40°
10
65°
41°
11
69°
36°
12
78°
41°
13
69°
41°
14
63°
43°
15
55°
40°
16
56°
36°
17
59°
38°
18
58°
36°
19
61°
37°
20
60°
38°
21
60°
37°
22
62°
53°
23
56°
38°
24
57°
39°
25
56°
39°
26
57°
40°
27
57°
40°
28
58°
38°
29
59°
40°
30
59°
40°
31
60°
43°
1
58°
44°
2
59°
40°
3
60°
42°
4
63°
43°
5
60°
42°
6
63°
46°
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 55° to 78°, with overnight lows between 36° and 53°. The average high for May is 61° 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.