S
M
T
W
T
F
S
31
71°
49°
1
71°
53°
2
73°
49°
3
80°
48°
4
87°
54°
5
80°
69°
6
85°
61°
7
79°
65°
8
80°
68°
9
86°
70°
10
90°
71°
11
87°
67°
12
86°
68°
13
82°
61°
14
73°
58°
15
73°
57°
16
77°
59°
17
74°
60°
18
76°
61°
19
79°
59°
20
75°
62°
21
78°
63°
22
75°
63°
23
77°
62°
24
82°
65°
25
82°
65°
26
83°
66°
27
83°
61°
28
75°
59°
29
76°
63°
30
81°
65°
1
80°
65°
2
78°
66°
3
83°
62°
4
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Island Lake
Island Lake's June 2026 forecast shows daily high temperatures ranging from 73° to 90°, with overnight lows between 57° and 71°. The average high for June is 80° with an average low of 63°. 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 Island Lake. See also: July | August | September.