S
M
T
W
T
F
S
26
63°
41°
27
60°
47°
28
57°
47°
29
62°
41°
30
65°
45°
1
65°
45°
2
65°
55°
3
69°
54°
4
75°
51°
5
67°
53°
6
60°
52°
7
63°
52°
8
63°
53°
9
65°
51°
10
65°
52°
11
65°
50°
12
70°
46°
13
62°
54°
14
63°
48°
15
56°
47°
16
59°
45°
17
62°
44°
18
64°
48°
19
65°
50°
20
65°
46°
21
67°
47°
22
65°
53°
23
64°
51°
24
62°
53°
25
61°
51°
26
64°
52°
27
66°
54°
28
65°
52°
29
64°
52°
30
63°
51°
31
63°
52°
1
66°
53°
2
66°
56°
3
68°
54°
4
70°
53°
5
63°
51°
6
61°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Boundary Bay
Boundary Bay's May 2026 forecast shows daily high temperatures ranging from 61° to 70°, with overnight lows between 51° and 56°. The average high for May is 64° with an average low of 53°. 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 Boundary Bay. See also: June | July | August.
