S
M
T
W
T
F
S
29
44°
28°
30
41°
34°
1
43°
34°
2
43°
33°
3
45°
33°
4
34°
30°
5
43°
28°
6
51°
26°
7
39°
24°
8
37°
21°
9
35°
19°
10
32°
16°
11
31°
18°
12
32°
20°
13
32°
23°
14
33°
26°
15
38°
28°
16
41°
26°
17
46°
21°
18
45°
21°
19
32°
19°
20
33°
16°
21
34°
17°
22
29°
16°
23
31°
20°
24
33°
26°
25
39°
30°
26
43°
30°
27
45°
27°
28
46°
25°
29
39°
23°
30
37°
24°
31
36°
23°
1
39°
20°
2
35°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Pomona
Pomona's December 2026 forecast shows daily high temperatures ranging from 29° to 51°, with overnight lows between 16° and 34°. 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 Pomona. See also: January | February | March.
