S
M
T
W
T
F
S
26
58°
39°
27
57°
37°
28
56°
37°
29
56°
34°
30
57°
32°
1
57°
32°
2
55°
33°
3
56°
36°
4
57°
36°
5
56°
35°
6
57°
35°
7
58°
37°
8
61°
37°
9
59°
36°
10
58°
37°
11
58°
37°
12
60°
40°
13
67°
47°
14
67°
47°
15
63°
48°
16
72°
45°
17
63°
42°
18
63°
40°
19
64°
46°
20
70°
49°
21
72°
42°
22
63°
41°
23
64°
41°
24
65°
43°
25
68°
45°
26
75°
51°
27
76°
51°
28
77°
46°
29
68°
44°
30
72°
47°
31
67°
53°
1
75°
44°
2
69°
44°
3
68°
43°
4
66°
46°
5
69°
49°
6
74°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lisle
Lisle's May 2026 forecast shows daily high temperatures ranging from 55° to 77°, with overnight lows between 32° and 54°. The average high for May is 64° with an average low of 42°. 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 Lisle. See also: June | July | August.