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