S
M
T
W
T
F
S
26
57°
48°
27
66°
52°
28
65°
47°
29
56°
38°
30
55°
41°
1
48°
37°
2
55°
39°
3
63°
44°
4
55°
43°
5
58°
43°
6
60°
48°
7
63°
46°
8
59°
47°
9
65°
45°
10
58°
44°
11
59°
47°
12
60°
45°
13
60°
41°
14
59°
42°
15
60°
42°
16
62°
46°
17
64°
50°
18
71°
53°
19
71°
48°
20
67°
48°
21
63°
47°
22
63°
46°
23
69°
54°
24
73°
55°
25
74°
54°
26
68°
49°
27
65°
49°
28
68°
55°
29
74°
56°
30
76°
56°
31
75°
57°
1
76°
58°
2
77°
59°
3
78°
58°
4
76°
53°
5
67°
52°
6
71°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Gurnee
Gurnee's May 2026 forecast shows daily high temperatures ranging from 48° to 78°, with overnight lows between 37° and 59°. The average high for May is 65° with an average low of 49°. 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 Gurnee. See also: June | July | August.
