S
M
T
W
T
F
S
26
90°
68°
27
85°
71°
28
82°
63°
29
81°
60°
30
85°
57°
31
82°
64°
1
70°
65°
2
79°
62°
3
83°
59°
4
84°
63°
5
83°
67°
6
81°
65°
7
82°
65°
8
84°
68°
9
86°
67°
10
85°
66°
11
81°
65°
12
81°
64°
13
83°
63°
14
83°
64°
15
82°
63°
16
77°
67°
17
86°
68°
18
86°
69°
19
87°
68°
20
82°
67°
21
84°
67°
22
85°
68°
23
85°
68°
24
82°
67°
25
82°
67°
26
84°
66°
27
81°
64°
28
78°
66°
29
82°
65°
30
83°
66°
31
83°
66°
1
84°
65°
2
79°
65°
3
81°
64°
4
81°
64°
5
83°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Chicagoland Speedway
Chicagoland Speedway's August 2026 forecast shows daily high temperatures ranging from 77° to 87°, with overnight lows between 59° and 69°. The average high for August is 83° with an average low of 66°. 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 Chicagoland Speedway. See also: September | October | November.
