S
M
T
W
T
F
S
28
98°
78°
29
94°
74°
30
95°
73°
1
95°
71°
2
96°
72°
3
97°
74°
4
93°
70°
5
95°
75°
6
88°
70°
7
89°
67°
8
87°
67°
9
88°
72°
10
90°
74°
11
93°
74°
12
95°
73°
13
96°
74°
14
96°
75°
15
97°
75°
16
97°
74°
17
96°
75°
18
96°
75°
19
97°
74°
20
96°
75°
21
97°
74°
22
97°
74°
23
96°
75°
24
96°
75°
25
97°
76°
26
98°
76°
27
99°
75°
28
98°
76°
29
98°
76°
30
97°
75°
31
99°
76°
1
99°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Illinois Bend
Illinois Bend's July 2026 forecast shows daily high temperatures ranging from 87° to 99°, with overnight lows between 67° and 78°. The average high for July is 95° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Illinois Bend. See also: August | September | October.