S
M
T
W
T
F
S
31
64°
49°
1
65°
48°
2
71°
52°
3
72°
55°
4
75°
56°
5
75°
56°
6
74°
48°
7
74°
48°
8
67°
51°
9
65°
50°
10
71°
49°
11
71°
54°
12
68°
49°
13
72°
49°
14
69°
50°
15
70°
48°
16
69°
51°
17
72°
57°
18
69°
54°
19
71°
56°
20
73°
56°
21
71°
55°
22
72°
57°
23
73°
60°
24
72°
60°
25
76°
59°
26
79°
55°
27
79°
59°
28
77°
61°
29
75°
60°
30
76°
58°
1
80°
62°
2
80°
53°
3
76°
54°
4
73°
60°
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 64° to 80°, with overnight lows between 48° and 62°. The average high for June is 72° with an average low of 54°. 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.
