S
M
T
W
T
F
S
31
68°
56°
1
68°
56°
2
63°
55°
3
64°
55°
4
67°
56°
5
66°
57°
6
69°
56°
7
69°
53°
8
64°
52°
9
64°
52°
10
65°
58°
11
68°
59°
12
71°
60°
13
70°
59°
14
68°
57°
15
67°
58°
16
68°
59°
17
68°
57°
18
70°
60°
19
69°
54°
20
70°
55°
21
70°
60°
22
76°
61°
23
77°
62°
24
73°
59°
25
77°
60°
26
76°
61°
27
75°
59°
28
73°
59°
29
78°
64°
30
79°
62°
1
79°
59°
2
75°
59°
3
75°
62°
4
76°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Barnstable
Barnstable's June 2026 forecast shows daily high temperatures ranging from 63° to 79°, with overnight lows between 52° and 64°. The average high for June is 71° with an average low of 58°. 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 Barnstable. See also: July | August | September.