S
M
T
W
T
F
S
26
59°
45°
27
72°
43°
28
63°
48°
29
54°
45°
30
55°
41°
1
50°
37°
2
50°
32°
3
63°
36°
4
77°
46°
5
59°
45°
6
57°
45°
7
59°
39°
8
63°
43°
9
72°
48°
10
64°
43°
11
61°
37°
12
66°
36°
13
60°
45°
14
66°
46°
15
72°
41°
16
81°
52°
17
88°
61°
18
88°
66°
19
86°
66°
20
66°
50°
21
63°
45°
22
64°
46°
23
59°
55°
24
72°
55°
25
81°
54°
26
81°
52°
27
83°
55°
28
74°
48°
29
79°
53°
30
72°
49°
31
74°
51°
1
73°
48°
2
75°
51°
3
79°
54°
4
81°
58°
5
79°
57°
6
78°
53°
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 72° to 83°, with overnight lows between 48° and 58°. The average high for May is 77° with an average low of 52°. 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.
