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