S
M
T
W
T
F
S
26
70°
39°
27
73°
39°
28
68°
43°
29
66°
50°
30
66°
39°
1
72°
36°
2
77°
45°
3
73°
48°
4
70°
48°
5
64°
45°
6
57°
45°
7
63°
45°
8
70°
41°
9
73°
48°
10
68°
48°
11
59°
45°
12
57°
37°
13
61°
37°
14
54°
45°
15
50°
41°
16
50°
39°
17
61°
37°
18
55°
43°
19
64°
51°
20
67°
48°
21
74°
51°
22
78°
53°
23
80°
57°
24
81°
57°
25
80°
59°
26
80°
60°
27
83°
59°
28
80°
58°
29
77°
57°
30
75°
56°
31
76°
57°
1
63°
48°
2
62°
47°
3
63°
46°
4
64°
47°
5
65°
49°
6
72°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Luzern
Luzern's May 2026 forecast shows daily high temperatures ranging from 62° to 83°, with overnight lows between 46° and 60°. The average high for May is 73° with an average low of 53°. 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 Luzern. See also: June | July | August.
