S
M
T
W
T
F
S
26
61°
38°
27
70°
38°
28
65°
47°
29
71°
47°
30
62°
41°
1
64°
47°
2
60°
42°
3
60°
42°
4
68°
53°
5
82°
58°
6
70°
52°
7
64°
42°
8
61°
43°
9
62°
49°
10
65°
49°
11
66°
50°
12
64°
51°
13
63°
49°
14
66°
50°
15
66°
52°
16
67°
52°
17
67°
51°
18
68°
55°
19
75°
56°
20
74°
56°
21
69°
55°
22
75°
54°
23
69°
53°
24
73°
55°
25
71°
51°
26
69°
53°
27
69°
57°
28
71°
59°
29
77°
59°
30
76°
58°
31
75°
58°
1
73°
52°
2
69°
52°
3
69°
53°
4
72°
53°
5
71°
54°
6
72°
53°
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 60° to 82°, with overnight lows between 42° and 59°. The average high for May is 69° with an average low of 52°. 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.