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