S
M
T
W
T
F
S
31
82°
68°
1
82°
66°
2
85°
60°
3
80°
56°
4
85°
59°
5
86°
61°
6
84°
64°
7
84°
65°
8
83°
67°
9
85°
66°
10
86°
65°
11
84°
66°
12
84°
64°
13
85°
65°
14
83°
62°
15
83°
66°
16
84°
65°
17
83°
66°
18
80°
66°
19
82°
65°
20
83°
67°
21
82°
67°
22
85°
66°
23
85°
66°
24
83°
63°
25
83°
62°
26
85°
66°
27
86°
67°
28
83°
68°
29
83°
67°
30
84°
63°
1
83°
62°
2
82°
66°
3
83°
68°
4
82°
68°
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 80° to 86°, with overnight lows between 56° and 68°. The average high for June is 84° with an average low of 65°. 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.
