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°
39°
20
N/A
21
75°
49°
22
78°
54°
23
81°
55°
24
84°
57°
25
83°
60°
26
84°
59°
27
80°
56°
28
76°
55°
29
80°
58°
30
75°
56°
31
74°
56°
1
70°
54°
2
62°
47°
3
62°
48°
4
62°
49°
5
63°
48°
6
64°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Lucerne
Lucerne's May 2026 forecast shows daily high temperatures ranging from 62° to 84°, with overnight lows between 47° and 60°. The average high for May is 74° with an average low of 54°. 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.
