S
M
T
W
T
F
S
29
48°
34°
30
48°
32°
1
49°
33°
2
45°
31°
3
48°
30°
4
45°
32°
5
45°
36°
6
52°
40°
7
56°
42°
8
58°
39°
9
59°
35°
10
49°
33°
11
47°
35°
12
48°
33°
13
49°
36°
14
47°
31°
15
54°
29°
16
45°
29°
17
42°
28°
18
43°
30°
19
42°
34°
20
46°
39°
21
53°
34°
22
54°
33°
23
50°
38°
24
53°
37°
25
56°
36°
26
52°
31°
27
47°
30°
28
52°
27°
29
51°
32°
30
43°
20°
31
54°
19°
1
37°
23°
2
40°
24°
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 37° to 59°, with overnight lows between 19° and 42°. The average high for December is 49° 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.
