S
M
T
W
T
F
S
29
46°
19°
30
39°
14°
1
37°
13°
2
39°
21°
3
44°
22°
4
38°
16°
5
37°
14°
6
36°
11°
7
34°
10°
8
36°
14°
9
44°
15°
10
44°
13°
11
43°
18°
12
45°
21°
13
46°
21°
14
39°
19°
15
39°
23°
16
41°
15°
17
38°
12°
18
37°
12°
19
38°
13°
20
37°
14°
21
39°
14°
22
38°
13°
23
38°
15°
24
39°
13°
25
39°
24°
26
40°
22°
27
45°
12°
28
40°
11°
29
37°
14°
30
39°
11°
31
38°
13°
1
38°
19°
2
42°
20°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lucerne
Lucerne's December 2026 forecast shows daily high temperatures ranging from 34° to 46°, with overnight lows between 10° and 24°. The average high for December is 40° with an average low of 16°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Lucerne. See also: January | February | March.
