S
M
T
W
T
F
S
29
49°
38°
30
51°
40°
1
53°
39°
2
52°
39°
3
54°
38°
4
52°
37°
5
50°
37°
6
51°
36°
7
52°
36°
8
47°
35°
9
43°
35°
10
44°
34°
11
44°
35°
12
45°
32°
13
44°
29°
14
44°
23°
15
39°
23°
16
36°
26°
17
40°
27°
18
39°
32°
19
47°
31°
20
48°
28°
21
43°
24°
22
39°
24°
23
37°
23°
24
39°
30°
25
41°
23°
26
47°
19°
27
37°
21°
28
33°
22°
29
37°
21°
30
36°
24°
31
38°
29°
1
49°
25°
2
47°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Cotuit
Cotuit's December 2026 forecast shows daily high temperatures ranging from 33° to 54°, with overnight lows between 19° and 40°. The average high for December is 44° with an average low of 30°. 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 Cotuit. See also: January | February | March.
