S
M
T
W
T
F
S
31
65°
53°
1
71°
55°
2
71°
56°
3
70°
56°
4
70°
57°
5
73°
54°
6
67°
54°
7
68°
56°
8
69°
59°
9
72°
60°
10
71°
60°
11
69°
59°
12
72°
59°
13
69°
58°
14
69°
60°
15
70°
60°
16
71°
61°
17
70°
61°
18
70°
62°
19
74°
61°
20
73°
61°
21
72°
62°
22
75°
63°
23
74°
64°
24
75°
63°
25
75°
63°
26
74°
64°
27
77°
64°
28
76°
63°
29
75°
63°
30
76°
64°
1
76°
61°
2
74°
60°
3
74°
62°
4
75°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Hyannis
Hyannis's June 2026 forecast shows daily high temperatures ranging from 65° to 77°, with overnight lows between 53° and 64°. The average high for June is 72° with an average low of 60°. 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 Hyannis. See also: July | August | September.