S
M
T
W
T
F
S
29
38°
23°
30
37°
23°
1
38°
22°
2
39°
11°
3
37°
6°
4
29°
6°
5
23°
7°
6
22°
8°
7
23°
3°
8
24°
2°
9
18°
2°
10
17°
4°
11
20°
5°
12
21°
9°
13
24°
16°
14
28°
20°
15
33°
18°
16
34°
19°
17
34°
19°
18
35°
18°
19
34°
17°
20
33°
15°
21
30°
15°
22
29°
14°
23
30°
11°
24
29°
14°
25
26°
5°
26
25°
6°
27
24°
16°
28
29°
15°
29
32°
11°
30
17°
-6°
31
28°
13°
1
26°
7°
2
Hist. Avg.
23°
6°
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 17° to 39°, with overnight lows between -6° and 23°. The average high for December is 28° with an average low of 12°. 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.
