S
M
T
W
T
F
S
29
56°
39°
30
58°
37°
1
57°
37°
2
57°
27°
3
56°
22°
4
44°
21°
5
40°
22°
6
40°
20°
7
41°
22°
8
43°
23°
9
44°
23°
10
39°
21°
11
38°
19°
12
37°
23°
13
37°
19°
14
38°
17°
15
35°
13°
16
34°
13°
17
32°
24°
18
37°
30°
19
40°
31°
20
49°
27°
21
50°
32°
22
50°
34°
23
52°
33°
24
53°
30°
25
51°
29°
26
47°
30°
27
48°
30°
28
49°
33°
29
51°
33°
30
52°
30°
31
52°
28°
1
49°
21°
2
42°
21°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Headquarters
Headquarters's December 2026 forecast shows daily high temperatures ranging from 32° to 58°, with overnight lows between 13° and 39°. The average high for December is 46° with an average low of 26°. 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 Headquarters. See also: January | February | March.
