S
M
T
W
T
F
S
29
37°
21°
30
34°
17°
1
26°
16°
2
29°
19°
3
37°
20°
4
36°
20°
5
31°
19°
6
31°
16°
7
22°
15°
8
27°
17°
9
34°
18°
10
35°
17°
11
34°
17°
12
34°
16°
13
33°
17°
14
20°
13°
15
28°
13°
16
30°
11°
17
29°
7°
18
27°
3°
19
20°
-2°
20
17°
0°
21
15°
10°
22
28°
9°
23
29°
5°
24
26°
8°
25
24°
9°
26
26°
10°
27
28°
10°
28
29°
7°
29
28°
6°
30
23°
-1°
31
23°
-8°
1
20°
-6°
2
13°
4°
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 13° to 37°, with overnight lows between -8° and 21°. The average high for December is 28° with an average low of 11°. 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.
