S
M
T
W
T
F
S
26
59°
30°
27
61°
26°
28
64°
31°
29
55°
37°
30
60°
39°
1
54°
44°
2
62°
40°
3
48°
33°
4
60°
35°
5
74°
41°
6
67°
51°
7
60°
42°
8
57°
37°
9
59°
36°
10
62°
45°
11
63°
47°
12
53°
39°
13
62°
37°
14
68°
44°
15
54°
43°
16
77°
42°
17
78°
47°
18
70°
43°
19
71°
46°
20
86°
42°
21
60°
37°
22
63°
38°
23
58°
37°
24
68°
41°
25
64°
46°
26
61°
45°
27
60°
44°
28
61°
43°
29
67°
46°
30
62°
47°
31
61°
48°
1
66°
49°
2
72°
46°
3
62°
47°
4
70°
48°
5
65°
46°
6
69°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cape Breton
Cape Breton's May 2026 forecast shows daily high temperatures ranging from 58° to 86°, with overnight lows between 37° and 49°. The average high for May is 65° with an average low of 44°. 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 Cape Breton. See also: June | July | August.
