S
M
T
W
T
F
S
29
47°
41°
30
52°
35°
1
55°
30°
2
46°
34°
3
44°
40°
4
54°
35°
5
52°
38°
6
49°
41°
7
49°
40°
8
55°
38°
9
53°
35°
10
48°
38°
11
49°
37°
12
51°
36°
13
49°
30°
14
44°
33°
15
42°
39°
16
52°
35°
17
53°
33°
18
46°
34°
19
49°
31°
20
45°
33°
21
43°
36°
22
50°
34°
23
51°
36°
24
49°
35°
25
48°
30°
26
48°
27°
27
46°
29°
28
41°
28°
29
42°
26°
30
42°
30°
31
41°
33°
1
46°
24°
2
51°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Edgartown
Edgartown's December 2026 forecast shows daily high temperatures ranging from 41° to 55°, with overnight lows between 19° and 41°. The average high for December is 48° with an average low of 34°. 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 Edgartown. See also: January | February | March.
