S
M
T
W
T
F
S
26
88°
64°
27
90°
66°
28
90°
66°
29
91°
61°
30
91°
68°
1
93°
68°
2
90°
64°
3
79°
64°
4
82°
66°
5
90°
64°
6
95°
63°
7
95°
66°
8
95°
66°
9
97°
70°
10
93°
72°
11
95°
73°
12
90°
72°
13
90°
72°
14
90°
70°
15
93°
64°
16
95°
73°
17
95°
72°
18
91°
72°
19
91°
73°
20
95°
70°
21
95°
70°
22
97°
70°
23
97°
72°
24
95°
73°
25
95°
75°
26
95°
75°
27
97°
75°
28
88°
73°
29
97°
73°
30
88°
73°
31
89°
74°
1
90°
75°
2
92°
72°
3
89°
71°
4
86°
70°
5
87°
71°
6
91°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Highland Park
Highland Park's May 2026 forecast shows daily high temperatures ranging from 86° to 97°, with overnight lows between 70° and 75°. The average high for May is 90° with an average low of 72°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Highland Park. See also: June | July | August.
