S
M
T
W
T
F
S
26
60°
34°
27
65°
34°
28
52°
40°
29
48°
42°
30
47°
43°
1
62°
38°
2
50°
42°
3
55°
36°
4
63°
47°
5
66°
52°
6
59°
50°
7
58°
41°
8
57°
37°
9
57°
38°
10
56°
42°
11
58°
41°
12
58°
43°
13
59°
42°
14
62°
44°
15
61°
45°
16
67°
48°
17
66°
47°
18
63°
49°
19
68°
48°
20
65°
48°
21
62°
49°
22
65°
49°
23
61°
47°
24
60°
46°
25
61°
47°
26
62°
50°
27
62°
48°
28
63°
46°
29
62°
45°
30
63°
49°
31
64°
52°
1
66°
49°
2
65°
47°
3
65°
53°
4
69°
53°
5
66°
52°
6
66°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Chebeague Island
Chebeague Island's May 2026 forecast shows daily high temperatures ranging from 50° to 69°, with overnight lows between 36° and 54°. The average high for May is 62° with an average low of 47°. 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 Chebeague Island. See also: June | July | August.