S
M
T
W
T
F
S
26
57°
38°
27
61°
39°
28
63°
39°
29
64°
41°
30
61°
40°
1
60°
41°
2
59°
40°
3
59°
41°
4
60°
41°
5
61°
46°
6
63°
45°
7
60°
45°
8
60°
46°
9
61°
45°
10
62°
47°
11
62°
47°
12
61°
44°
13
61°
44°
14
64°
46°
15
69°
46°
16
69°
48°
17
70°
53°
18
67°
51°
19
64°
52°
20
68°
49°
21
65°
52°
22
64°
51°
23
65°
53°
24
67°
54°
25
67°
50°
26
65°
48°
27
66°
53°
28
70°
50°
29
65°
49°
30
66°
47°
31
66°
47°
1
65°
46°
2
66°
47°
3
67°
54°
4
72°
54°
5
72°
55°
6
73°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Lucerne
Lucerne's May 2026 forecast shows daily high temperatures ranging from 57° to 73°, with overnight lows between 38° and 57°. The average high for May is 64° with an average low of 47°. 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 Lucerne. See also: June | July | August.