S
M
T
W
T
F
S
26
67°
42°
27
61°
46°
28
56°
40°
29
64°
34°
30
58°
36°
1
59°
33°
2
71°
27°
3
77°
50°
4
80°
44°
5
61°
38°
6
62°
30°
7
72°
35°
8
83°
45°
9
73°
40°
10
76°
34°
11
89°
38°
12
83°
52°
13
81°
42°
14
85°
49°
15
96°
52°
16
87°
52°
17
84°
60°
18
58°
43°
19
64°
41°
20
63°
49°
21
61°
50°
22
70°
51°
23
76°
56°
24
81°
57°
25
80°
59°
26
81°
61°
27
84°
61°
28
82°
58°
29
79°
56°
30
81°
58°
31
78°
55°
1
82°
60°
2
77°
60°
3
74°
56°
4
75°
58°
5
79°
61°
6
81°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lyons
Lyons's May 2026 forecast shows daily high temperatures ranging from 58° to 84°, with overnight lows between 41° and 61°. The average high for May is 75° with an average low of 56°. 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 Lyons. See also: June | July | August.
