S
M
T
W
T
F
S
29
44°
27°
30
46°
34°
1
48°
40°
2
46°
40°
3
46°
39°
4
52°
41°
5
49°
40°
6
49°
40°
7
51°
36°
8
44°
33°
9
42°
31°
10
44°
30°
11
57°
30°
12
61°
26°
13
60°
23°
14
41°
24°
15
42°
23°
16
44°
24°
17
41°
31°
18
46°
37°
19
54°
38°
20
56°
37°
21
56°
35°
22
55°
38°
23
56°
37°
24
59°
24°
25
58°
21°
26
41°
22°
27
39°
27°
28
45°
35°
29
50°
36°
30
53°
38°
31
56°
39°
1
57°
31°
2
58°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Dover
Dover's December 2026 forecast shows daily high temperatures ranging from 39° to 61°, with overnight lows between 21° and 41°. The average high for December is 50° with an average low of 32°. 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 Dover. See also: January | February | March.
