S
M
T
W
T
F
S
29
61°
48°
30
62°
45°
1
60°
40°
2
58°
32°
3
48°
36°
4
49°
42°
5
55°
38°
6
50°
34°
7
48°
42°
8
55°
36°
9
56°
34°
10
46°
31°
11
48°
28°
12
42°
29°
13
41°
27°
14
44°
26°
15
40°
27°
16
39°
26°
17
40°
25°
18
43°
23°
19
41°
26°
20
39°
36°
21
41°
38°
22
47°
37°
23
49°
38°
24
50°
39°
25
56°
36°
26
55°
33°
27
44°
34°
28
44°
26°
29
Hist. Avg.
45°
32°
30
Hist. Avg.
45°
32°
31
Hist. Avg.
45°
31°
1
Hist. Avg.
44°
31°
2
Hist. Avg.
44°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Dundalk
Dundalk's December 2026 forecast shows daily high temperatures ranging from 39° to 62°, with overnight lows between 23° and 48°. The average high for December is 48° with an average low of 34°. 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 Dundalk. See also: January | February | March.
