S
M
T
W
T
F
S
29
37°
30°
30
42°
32°
1
45°
32°
2
46°
28°
3
37°
29°
4
41°
32°
5
47°
26°
6
35°
22°
7
34°
25°
8
42°
31°
9
46°
29°
10
42°
30°
11
44°
31°
12
45°
29°
13
40°
26°
14
38°
18°
15
31°
16°
16
30°
20°
17
35°
27°
18
39°
28°
19
43°
27°
20
41°
27°
21
44°
26°
22
42°
25°
23
36°
25°
24
39°
28°
25
29°
12°
26
29°
18°
27
30°
17°
28
33°
23°
29
38°
24°
30
42°
23°
31
39°
23°
1
37°
22°
2
40°
16°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Cape Neddick
Cape Neddick's December 2026 forecast shows daily high temperatures ranging from 29° to 47°, with overnight lows between 12° and 32°. The average high for December is 39° with an average low of 25°. 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 Cape Neddick. See also: January | February | March.