S
M
T
W
T
F
S
29
39°
22°
30
39°
24°
1
40°
26°
2
37°
20°
3
37°
18°
4
36°
21°
5
36°
25°
6
41°
31°
7
45°
30°
8
51°
26°
9
52°
23°
10
34°
20°
11
35°
24°
12
41°
20°
13
37°
20°
14
33°
19°
15
32°
18°
16
32°
16°
17
33°
12°
18
32°
15°
19
32°
23°
20
34°
28°
21
41°
21°
22
45°
19°
23
38°
26°
24
40°
27°
25
46°
25°
26
42°
23°
27
37°
18°
28
39°
15°
29
33°
17°
30
30°
7°
31
33°
8°
1
24°
9°
2
28°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Somerset
Somerset's December 2026 forecast shows daily high temperatures ranging from 24° to 52°, with overnight lows between 7° and 31°. The average high for December is 37° with an average low of 20°. 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 Somerset. See also: January | February | March.
