S
M
T
W
T
F
S
31
68°
38°
1
60°
44°
2
74°
42°
3
79°
48°
4
84°
55°
5
86°
57°
6
82°
54°
7
79°
54°
8
75°
48°
9
84°
57°
10
88°
59°
11
89°
69°
12
87°
67°
13
86°
67°
14
88°
61°
15
79°
63°
16
76°
56°
17
77°
53°
18
79°
60°
19
80°
61°
20
74°
59°
21
73°
60°
22
68°
63°
23
80°
56°
24
82°
55°
25
78°
56°
26
75°
58°
27
81°
57°
28
81°
59°
29
82°
60°
30
83°
63°
1
82°
57°
2
77°
56°
3
76°
60°
4
77°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Plum Island
Plum Island's June 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 55° and 63°. The average high for June is 78° with an average low of 59°. 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 Plum Island. See also: July | August | September.
