S
M
T
W
T
F
S
26
84°
71°
27
81°
71°
28
88°
72°
29
88°
72°
30
87°
71°
31
86°
72°
1
87°
72°
2
88°
73°
3
89°
72°
4
86°
71°
5
87°
72°
6
88°
72°
7
88°
70°
8
80°
67°
9
79°
68°
10
79°
69°
11
85°
71°
12
86°
72°
13
88°
73°
14
87°
71°
15
86°
70°
16
80°
68°
17
79°
67°
18
79°
69°
19
84°
69°
20
85°
68°
21
86°
69°
22
85°
65°
23
82°
61°
24
77°
61°
25
78°
62°
26
78°
61°
27
79°
60°
28
79°
60°
29
81°
64°
30
83°
67°
31
79°
67°
1
80°
66°
2
84°
63°
3
84°
58°
4
76°
59°
5
75°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Blue Island
Blue Island's August 2026 forecast shows daily high temperatures ranging from 75° to 89°, with overnight lows between 58° and 73°. The average high for August is 83° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Blue Island. See also: September | October | November.
