S
M
T
W
T
F
S
29
46°
29°
30
48°
34°
1
51°
40°
2
51°
37°
3
55°
37°
4
55°
36°
5
53°
32°
6
44°
28°
7
43°
36°
8
54°
39°
9
52°
38°
10
50°
39°
11
52°
38°
12
51°
34°
13
45°
31°
14
42°
28°
15
40°
26°
16
40°
26°
17
41°
29°
18
45°
36°
19
53°
36°
20
51°
37°
21
53°
31°
22
41°
29°
23
43°
35°
24
52°
36°
25
40°
23°
26
40°
23°
27
41°
29°
28
40°
33°
29
54°
29°
30
47°
24°
31
41°
24°
1
41°
22°
2
40°
21°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Dunkirk
Dunkirk's December 2026 forecast shows daily high temperatures ranging from 40° to 55°, with overnight lows between 21° and 40°. The average high for December is 47° 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 Dunkirk. See also: January | February | March.
