S
M
T
W
T
F
S
29
60°
38°
30
61°
30°
1
47°
26°
2
46°
26°
3
54°
37°
4
56°
35°
5
50°
33°
6
48°
28°
7
45°
24°
8
43°
23°
9
44°
26°
10
47°
32°
11
51°
29°
12
57°
32°
13
51°
32°
14
48°
27°
15
49°
28°
16
47°
28°
17
46°
21°
18
42°
18°
19
41°
15°
20
38°
19°
21
42°
27°
22
49°
24°
23
42°
22°
24
42°
20°
25
43°
25°
26
46°
30°
27
46°
26°
28
45°
23°
29
43°
23°
30
43°
22°
31
44°
17°
1
39°
20°
2
41°
30°
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 38° to 61°, with overnight lows between 15° and 38°. The average high for December is 47° with an average low of 26°. 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.
