S
M
T
W
T
F
S
29
44°
35°
30
54°
28°
1
54°
26°
2
51°
34°
3
52°
26°
4
53°
25°
5
42°
26°
6
40°
25°
7
40°
27°
8
41°
30°
9
42°
35°
10
50°
34°
11
51°
30°
12
49°
29°
13
41°
28°
14
41°
24°
15
42°
21°
16
38°
19°
17
36°
21°
18
35°
30°
19
44°
29°
20
42°
23°
21
48°
24°
22
37°
33°
23
48°
34°
24
49°
30°
25
48°
29°
26
47°
29°
27
43°
28°
28
45°
30°
29
46°
30°
30
46°
32°
31
48°
30°
1
49°
28°
2
47°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Mashpee
Mashpee's December 2026 forecast shows daily high temperatures ranging from 35° to 54°, with overnight lows between 19° and 35°. The average high for December is 45° with an average low of 28°. 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 Mashpee. See also: January | February | March.
