S
M
T
W
T
F
S
29
46°
30°
30
49°
34°
1
46°
29°
2
43°
26°
3
44°
33°
4
50°
35°
5
49°
34°
6
50°
30°
7
40°
32°
8
41°
20°
9
37°
20°
10
35°
19°
11
35°
21°
12
36°
23°
13
36°
21°
14
37°
22°
15
42°
31°
16
47°
32°
17
47°
28°
18
39°
27°
19
39°
25°
20
38°
27°
21
38°
20°
22
32°
24°
23
37°
22°
24
38°
16°
25
33°
11°
26
27°
12°
27
27°
18°
28
34°
14°
29
38°
27°
30
44°
12°
31
45°
11°
1
27°
14°
2
27°
13°
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 27° to 50°, with overnight lows between 11° and 35°. The average high for December is 39° with an average low of 23°. 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.
