S
M
T
W
T
F
S
26
87°
69°
27
90°
69°
28
84°
66°
29
82°
62°
30
85°
63°
31
84°
65°
1
77°
69°
2
80°
66°
3
83°
61°
4
84°
63°
5
85°
67°
6
82°
69°
7
84°
68°
8
86°
69°
9
88°
71°
10
89°
70°
11
88°
68°
12
85°
68°
13
86°
66°
14
84°
67°
15
85°
65°
16
83°
66°
17
88°
70°
18
88°
70°
19
89°
69°
20
87°
68°
21
86°
68°
22
87°
67°
23
88°
69°
24
87°
69°
25
85°
68°
26
84°
68°
27
82°
67°
28
81°
66°
29
85°
67°
30
82°
66°
31
84°
66°
1
85°
65°
2
83°
62°
3
80°
62°
4
81°
64°
5
85°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lucas Oil Raceway at Indianapolis
Lucas Oil Raceway at Indianapolis's August 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 61° and 71°. The average high for August is 85° 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 Lucas Oil Raceway at Indianapolis. See also: September | October | November.
