S
M
T
W
T
F
S
26
75°
45°
27
77°
45°
28
68°
52°
29
75°
50°
30
75°
52°
1
77°
50°
2
75°
54°
3
68°
59°
4
61°
54°
5
66°
54°
6
61°
50°
7
68°
48°
8
73°
45°
9
75°
54°
10
66°
55°
11
66°
54°
12
61°
48°
13
66°
46°
14
61°
48°
15
52°
41°
16
61°
41°
17
68°
41°
18
68°
52°
19
72°
46°
20
75°
52°
21
79°
52°
22
84°
52°
23
86°
55°
24
88°
55°
25
91°
61°
26
91°
63°
27
91°
63°
28
90°
59°
29
90°
63°
30
91°
61°
31
82°
63°
1
81°
63°
2
77°
59°
3
73°
54°
4
64°
54°
5
70°
50°
6
79°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lyon
Lyon's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 Lyon. See also: June | July | August.
