S
M
T
W
T
F
S
26
83°
67°
27
83°
72°
28
84°
68°
29
78°
65°
30
77°
65°
31
80°
70°
1
84°
72°
2
85°
72°
3
84°
71°
4
85°
71°
5
80°
70°
6
82°
71°
7
86°
70°
8
79°
71°
9
85°
70°
10
78°
66°
11
79°
68°
12
81°
71°
13
84°
68°
14
80°
64°
15
77°
64°
16
78°
67°
17
77°
69°
18
81°
70°
19
83°
67°
20
84°
70°
21
84°
66°
22
76°
63°
23
82°
69°
24
77°
68°
25
84°
67°
26
84°
69°
27
83°
61°
28
76°
60°
29
73°
58°
30
75°
61°
31
76°
66°
1
75°
68°
2
79°
60°
3
75°
57°
4
72°
58°
5
71°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in South Chicago
South Chicago's August 2026 forecast shows daily high temperatures ranging from 71° to 86°, with overnight lows between 57° and 72°. The average high for August is 80° with an average low of 67°. 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 South Chicago. See also: September | October | November.
