S
M
T
W
T
F
S
29
53°
42°
30
58°
41°
1
57°
40°
2
50°
33°
3
45°
30°
4
49°
35°
5
54°
39°
6
48°
34°
7
43°
28°
8
42°
24°
9
41°
24°
10
42°
29°
11
42°
29°
12
44°
30°
13
45°
25°
14
44°
25°
15
43°
30°
16
43°
33°
17
44°
29°
18
48°
26°
19
45°
23°
20
42°
22°
21
40°
23°
22
41°
25°
23
45°
27°
24
41°
23°
25
41°
23°
26
42°
22°
27
41°
22°
28
40°
23°
29
40°
23°
30
41°
24°
31
41°
21°
1
40°
17°
2
39°
17°
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 58°, with overnight lows between 17° and 42°. The average high for December is 44° with an average low of 27°. 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.
