S
M
T
W
T
F
S
26
89°
70°
27
84°
71°
28
81°
62°
29
80°
58°
30
84°
57°
31
78°
65°
1
72°
66°
2
77°
63°
3
83°
59°
4
85°
62°
5
81°
66°
6
80°
67°
7
85°
64°
8
82°
64°
9
84°
61°
10
87°
71°
11
81°
67°
12
82°
69°
13
78°
68°
14
79°
70°
15
84°
72°
16
84°
66°
17
80°
60°
18
82°
64°
19
81°
65°
20
79°
61°
21
82°
63°
22
81°
61°
23
79°
61°
24
78°
60°
25
77°
55°
26
83°
66°
27
84°
65°
28
75°
59°
29
78°
60°
30
81°
63°
31
83°
64°
1
84°
65°
2
85°
64°
3
83°
64°
4
83°
63°
5
81°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in West Chicago
West Chicago's August 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 55° and 72°. The average high for August is 81° 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 August weather will actually feel in West Chicago. See also: September | October | November.
