S
M
T
W
T
F
S
29
63°
46°
30
65°
46°
1
66°
45°
2
62°
38°
3
55°
33°
4
56°
35°
5
61°
44°
6
61°
38°
7
54°
35°
8
52°
33°
9
52°
35°
10
53°
32°
11
52°
30°
12
53°
30°
13
58°
32°
14
55°
32°
15
56°
42°
16
56°
36°
17
59°
40°
18
61°
32°
19
57°
28°
20
52°
26°
21
50°
27°
22
52°
30°
23
53°
31°
24
50°
28°
25
51°
26°
26
51°
28°
27
52°
26°
28
52°
28°
29
54°
35°
30
57°
31°
31
58°
28°
1
51°
24°
2
49°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Campbell
Campbell's December 2026 forecast shows daily high temperatures ranging from 49° to 66°, with overnight lows between 24° and 46°. The average high for December is 55° with an average low of 33°. 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 Campbell. See also: January | February | March.
