S
M
T
W
T
F
S
26
60°
42°
27
64°
45°
28
67°
54°
29
55°
44°
30
55°
42°
1
49°
38°
2
48°
37°
3
65°
36°
4
76°
49°
5
63°
49°
6
55°
45°
7
57°
42°
8
64°
41°
9
71°
49°
10
62°
40°
11
56°
40°
12
61°
36°
13
61°
45°
14
66°
46°
15
69°
41°
16
79°
62°
17
81°
64°
18
89°
68°
19
86°
57°
20
67°
44°
21
62°
45°
22
66°
52°
23
72°
57°
24
76°
59°
25
77°
59°
26
78°
58°
27
79°
59°
28
79°
57°
29
78°
54°
30
78°
61°
31
77°
60°
1
74°
60°
2
78°
59°
3
75°
60°
4
70°
59°
5
71°
59°
6
74°
62°
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 62° to 89°, with overnight lows between 44° and 68°. The average high for May is 76° with an average low of 58°. 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.
