S
M
T
W
T
F
S
26
63°
53°
27
72°
59°
28
63°
43°
29
63°
37°
30
64°
35°
1
69°
34°
2
71°
37°
3
88°
43°
4
87°
59°
5
59°
44°
6
59°
44°
7
79°
40°
8
78°
45°
9
88°
44°
10
73°
42°
11
82°
38°
12
94°
57°
13
83°
57°
14
94°
61°
15
96°
65°
16
97°
66°
17
94°
71°
18
95°
52°
19
64°
44°
20
68°
52°
21
62°
56°
22
70°
53°
23
77°
55°
24
81°
57°
25
83°
60°
26
84°
62°
27
79°
61°
28
82°
61°
29
83°
62°
30
84°
62°
31
84°
61°
1
85°
58°
2
82°
63°
3
77°
58°
4
78°
60°
5
81°
65°
6
85°
65°
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 62° to 85°, with overnight lows between 44° and 65°. The average high for May is 78° with an average low of 59°. 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.
