S
M
T
W
T
F
S
26
55°
38°
27
56°
39°
28
54°
37°
29
53°
38°
30
55°
39°
1
55°
42°
2
54°
40°
3
55°
38°
4
54°
37°
5
55°
35°
6
57°
36°
7
58°
39°
8
58°
44°
9
61°
45°
10
64°
45°
11
58°
42°
12
57°
40°
13
58°
40°
14
57°
41°
15
59°
40°
16
60°
44°
17
60°
42°
18
61°
45°
19
60°
45°
20
63°
43°
21
63°
48°
22
68°
48°
23
67°
49°
24
64°
50°
25
70°
50°
26
67°
49°
27
65°
50°
28
65°
51°
29
74°
49°
30
73°
46°
31
69°
47°
1
70°
46°
2
75°
52°
3
76°
55°
4
77°
55°
5
78°
54°
6
78°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Bar Harbor Town
Bar Harbor Town's May 2026 forecast shows daily high temperatures ranging from 53° to 78°, with overnight lows between 35° and 55°. The average high for May is 63° 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 Bar Harbor Town. See also: June | July | August.
