S
M
T
W
T
F
S
29
49°
32°
30
53°
37°
1
50°
37°
2
52°
27°
3
57°
23°
4
45°
24°
5
40°
28°
6
48°
28°
7
54°
33°
8
56°
37°
9
40°
23°
10
56°
40°
11
58°
36°
12
Hist. Avg.
47°
31°
13
Hist. Avg.
47°
31°
14
Hist. Avg.
47°
30°
15
Hist. Avg.
47°
30°
16
Hist. Avg.
46°
30°
17
Hist. Avg.
46°
30°
18
Hist. Avg.
46°
30°
19
Hist. Avg.
46°
29°
20
Hist. Avg.
45°
29°
21
Hist. Avg.
45°
29°
22
Hist. Avg.
45°
29°
23
Hist. Avg.
45°
29°
24
Hist. Avg.
45°
28°
25
Hist. Avg.
44°
28°
26
Hist. Avg.
44°
28°
27
Hist. Avg.
44°
28°
28
Hist. Avg.
44°
28°
29
Hist. Avg.
44°
28°
30
Hist. Avg.
44°
27°
31
Hist. Avg.
44°
27°
1
Hist. Avg.
44°
27°
2
Hist. Avg.
44°
27°
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 40° to 58°, with overnight lows between 23° and 40°. The average high for December is 51° with an average low of 31°. 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.
