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