S
M
T
W
T
F
S
29
40°
26°
30
43°
28°
1
42°
27°
2
40°
28°
3
43°
26°
4
41°
25°
5
40°
25°
6
38°
26°
7
41°
24°
8
34°
23°
9
32°
23°
10
33°
22°
11
32°
23°
12
32°
20°
13
33°
15°
14
34°
11°
15
29°
12°
16
26°
13°
17
27°
12°
18
26°
19°
19
30°
18°
20
33°
17°
21
31°
12°
22
30°
13°
23
28°
4°
24
27°
12°
25
24°
10°
26
27°
3°
27
24°
1°
28
19°
3°
29
23°
1°
30
21°
6°
31
23°
15°
1
34°
12°
2
34°
5°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lunenburg
Lunenburg's December 2026 forecast shows daily high temperatures ranging from 19° to 43°, with overnight lows between 1° and 28°. The average high for December is 32° 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 Lunenburg. See also: January | February | March.
