S
M
T
W
T
F
S
26
99°
81°
27
100°
82°
28
100°
81°
29
99°
82°
30
100°
82°
31
103°
83°
1
97°
84°
2
96°
76°
3
100°
76°
4
101°
80°
5
101°
83°
6
101°
82°
7
101°
81°
8
101°
81°
9
99°
78°
10
99°
79°
11
100°
78°
12
101°
81°
13
101°
82°
14
101°
80°
15
100°
81°
16
104°
83°
17
105°
83°
18
107°
84°
19
106°
83°
20
107°
85°
21
107°
83°
22
107°
84°
23
108°
84°
24
107°
83°
25
105°
82°
26
104°
83°
27
104°
81°
28
102°
80°
29
100°
81°
30
99°
80°
31
94°
75°
1
97°
79°
2
98°
78°
3
90°
74°
4
89°
70°
5
88°
70°
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 88° to 108°, with overnight lows between 70° and 85°. The average high for August is 101° with an average low of 80°. 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.
