S
M
T
W
T
F
S
31
82°
56°
1
83°
61°
2
80°
52°
3
83°
57°
4
85°
62°
5
86°
67°
6
89°
68°
7
85°
67°
8
86°
67°
9
83°
68°
10
85°
67°
11
86°
63°
12
82°
61°
13
80°
64°
14
87°
71°
15
76°
58°
16
76°
58°
17
77°
59°
18
78°
61°
19
78°
63°
20
79°
64°
21
79°
63°
22
81°
66°
23
80°
64°
24
82°
66°
25
83°
67°
26
85°
67°
27
84°
66°
28
81°
61°
29
80°
63°
30
81°
61°
1
81°
63°
2
82°
67°
3
82°
68°
4
81°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Illiana
Illiana's June 2026 forecast shows daily high temperatures ranging from 76° to 89°, with overnight lows between 52° and 71°. The average high for June is 82° with an average low of 64°. 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 Illiana. See also: July | August | September.
