S
M
T
W
T
F
S
31
81°
62°
1
82°
63°
2
82°
63°
3
84°
64°
4
84°
64°
5
83°
58°
6
76°
57°
7
76°
60°
8
79°
65°
9
83°
62°
10
87°
67°
11
86°
63°
12
87°
66°
13
86°
67°
14
87°
61°
15
83°
61°
16
82°
60°
17
84°
60°
18
84°
61°
19
83°
66°
20
85°
60°
21
82°
61°
22
83°
68°
23
83°
68°
24
87°
62°
25
83°
63°
26
84°
62°
27
84°
64°
28
85°
62°
29
83°
62°
30
84°
66°
1
87°
67°
2
89°
69°
3
91°
66°
4
89°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Bar Harbor
Bar Harbor's June 2026 forecast shows daily high temperatures ranging from 76° to 91°, with overnight lows between 57° and 69°. The average high for June is 84° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Bar Harbor. See also: July | August | September.