S
M
T
W
T
F
S
31
83°
61°
1
87°
60°
2
83°
52°
3
83°
50°
4
84°
55°
5
82°
70°
6
89°
72°
7
88°
70°
8
81°
69°
9
89°
71°
10
89°
65°
11
88°
64°
12
80°
57°
13
77°
58°
14
71°
56°
15
75°
50°
16
78°
55°
17
72°
50°
18
75°
58°
19
79°
57°
20
79°
61°
21
69°
58°
22
76°
56°
23
79°
54°
24
79°
59°
25
81°
62°
26
68°
65°
27
77°
66°
28
89°
66°
29
89°
72°
30
91°
74°
1
90°
72°
2
92°
71°
3
92°
70°
4
88°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Illiopolis
Illiopolis's June 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for June is ° with an average low of °. 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 Illiopolis. See also: July | August | September.
