S
M
T
W
T
F
S
29
42°
35°
30
43°
36°
1
46°
35°
2
50°
36°
3
49°
34°
4
35°
28°
5
48°
25°
6
49°
23°
7
35°
19°
8
33°
23°
9
36°
18°
10
33°
14°
11
33°
17°
12
34°
24°
13
36°
21°
14
36°
28°
15
37°
30°
16
40°
27°
17
47°
23°
18
45°
23°
19
35°
22°
20
34°
20°
21
35°
16°
22
32°
19°
23
35°
24°
24
41°
27°
25
39°
29°
26
40°
26°
27
41°
24°
28
37°
22°
29
33°
21°
30
32°
19°
31
35°
20°
1
34°
19°
2
34°
22°
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 32° to 50°, with overnight lows between 14° and 36°. The average high for December is 38° with an average low of 24°. 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.
