S
M
T
W
T
F
S
29
41°
27°
30
43°
32°
1
47°
38°
2
46°
34°
3
48°
35°
4
50°
38°
5
50°
30°
6
39°
26°
7
39°
34°
8
49°
38°
9
47°
36°
10
45°
37°
11
47°
37°
12
48°
35°
13
42°
31°
14
38°
27°
15
36°
25°
16
35°
26°
17
36°
29°
18
42°
35°
19
48°
35°
20
45°
34°
21
48°
32°
22
37°
30°
23
39°
33°
24
46°
33°
25
34°
21°
26
35°
22°
27
34°
29°
28
35°
31°
29
49°
28°
30
47°
25°
31
36°
24°
1
35°
21°
2
34°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Wilmington
Wilmington's December 2026 forecast shows daily high temperatures ranging from 34° to 50°, with overnight lows between 19° and 38°. The average high for December is 42° with an average low of 30°. 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 Wilmington. See also: January | February | March.
