S
M
T
W
T
F
S
31
63°
37°
1
62°
44°
2
65°
48°
3
65°
50°
4
68°
58°
5
75°
61°
6
70°
54°
7
61°
51°
8
64°
53°
9
69°
54°
10
70°
55°
11
72°
57°
12
71°
57°
13
70°
58°
14
72°
56°
15
71°
54°
16
67°
51°
17
68°
54°
18
69°
55°
19
70°
55°
20
69°
53°
21
70°
54°
22
70°
54°
23
71°
55°
24
69°
60°
25
70°
60°
26
71°
58°
27
73°
60°
28
72°
59°
29
71°
57°
30
70°
56°
1
71°
55°
2
72°
59°
3
74°
62°
4
75°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Long Island
Long Island's June 2026 forecast shows daily high temperatures ranging from 61° to 75°, with overnight lows between 48° and 62°. The average high for June is 70° with an average low of 56°. 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 Long Island. See also: July | August | September.
