S
M
T
W
T
F
S
26
89°
67°
27
88°
61°
28
93°
67°
29
92°
67°
30
85°
66°
31
85°
66°
1
86°
65°
2
89°
67°
3
91°
67°
4
92°
66°
5
92°
67°
6
91°
67°
7
92°
66°
8
90°
65°
9
91°
66°
10
91°
66°
11
89°
65°
12
90°
65°
13
90°
64°
14
89°
65°
15
90°
65°
16
90°
64°
17
89°
65°
18
90°
66°
19
91°
66°
20
91°
65°
21
90°
65°
22
89°
64°
23
88°
64°
24
92°
64°
25
92°
65°
26
91°
63°
27
89°
61°
28
92°
60°
29
88°
57°
30
88°
60°
31
87°
62°
1
87°
61°
2
88°
57°
3
85°
56°
4
89°
57°
5
91°
62°
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 85° to 93°, with overnight lows between 56° and 67°. The average high for August is 90° 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 Highland Park. See also: September | October | November.
