S
M
T
W
T
F
S
31
70°
31°
1
65°
37°
2
77°
35°
3
80°
43°
4
76°
43°
5
88°
46°
6
78°
52°
7
85°
61°
8
72°
55°
9
75°
43°
10
72°
61°
11
90°
63°
12
91°
67°
13
87°
59°
14
84°
56°
15
78°
61°
16
74°
50°
17
74°
52°
18
81°
64°
19
80°
59°
20
82°
53°
21
80°
50°
22
72°
51°
23
71°
62°
24
80°
58°
25
78°
66°
26
76°
68°
27
76°
66°
28
80°
65°
29
82°
66°
30
80°
67°
1
81°
66°
2
79°
69°
3
81°
67°
4
82°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Shelter Island
Shelter Island's June 2026 forecast shows daily high temperatures ranging from 71° to 82°, with overnight lows between 58° and 69°. The average high for June is 79° with an average low of 66°. 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 Shelter Island. See also: July | August | September.