S
M
T
W
T
F
S
31
60°
48°
1
58°
42°
2
61°
40°
3
72°
51°
4
65°
52°
5
78°
56°
6
70°
55°
7
70°
56°
8
68°
53°
9
69°
54°
10
66°
57°
11
66°
60°
12
73°
61°
13
82°
61°
14
79°
58°
15
79°
63°
16
71°
58°
17
70°
56°
18
70°
59°
19
72°
61°
20
75°
62°
21
74°
59°
22
77°
59°
23
73°
61°
24
75°
61°
25
74°
61°
26
71°
65°
27
73°
62°
28
70°
60°
29
73°
62°
30
74°
63°
1
74°
65°
2
79°
67°
3
77°
63°
4
74°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Nantucket
Nantucket's June 2026 forecast shows daily high temperatures ranging from 70° to 79°, with overnight lows between 60° and 67°. The average high for June is 74° 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 Nantucket. See also: July | August | September.