S
M
T
W
T
F
S
31
77°
46°
1
84°
58°
2
75°
49°
3
82°
51°
4
87°
57°
5
93°
63°
6
91°
61°
7
89°
63°
8
90°
66°
9
87°
64°
10
86°
63°
11
87°
62°
12
89°
64°
13
86°
60°
14
87°
59°
15
84°
62°
16
81°
62°
17
85°
61°
18
80°
62°
19
80°
60°
20
81°
60°
21
80°
62°
22
81°
64°
23
80°
64°
24
82°
63°
25
82°
63°
26
83°
64°
27
86°
64°
28
87°
65°
29
83°
62°
30
82°
60°
1
82°
60°
2
83°
61°
3
83°
65°
4
84°
65°
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 75° to 93°, with overnight lows between 49° and 66°. The average high for June is 84° with an average low of 61°. 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.
