S
M
T
W
T
F
S
29
59°
45°
30
58°
41°
1
57°
38°
2
55°
38°
3
56°
34°
4
54°
31°
5
53°
34°
6
55°
41°
7
62°
46°
8
60°
47°
9
61°
48°
10
67°
40°
11
68°
36°
12
52°
33°
13
63°
43°
14
61°
42°
15
65°
44°
16
Hist. Avg.
57°
36°
17
Hist. Avg.
57°
36°
18
Hist. Avg.
57°
36°
19
Hist. Avg.
57°
36°
20
Hist. Avg.
57°
36°
21
Hist. Avg.
57°
36°
22
Hist. Avg.
57°
36°
23
Hist. Avg.
56°
36°
24
Hist. Avg.
56°
36°
25
Hist. Avg.
56°
36°
26
Hist. Avg.
56°
35°
27
Hist. Avg.
56°
35°
28
Hist. Avg.
56°
35°
29
Hist. Avg.
56°
35°
30
Hist. Avg.
56°
35°
31
Hist. Avg.
56°
35°
1
Hist. Avg.
56°
35°
2
Hist. Avg.
56°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Arlington
Arlington's December 2026 forecast shows daily high temperatures ranging from 52° to 68°, with overnight lows between 31° and 48°. The average high for December is 59° with an average low of 40°. 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 Arlington. See also: January | February | March.
