S
M
T
W
T
F
S
29
60°
34°
30
63°
35°
1
62°
36°
2
62°
38°
3
64°
39°
4
67°
41°
5
68°
34°
6
62°
38°
7
63°
39°
8
67°
40°
9
68°
39°
10
67°
40°
11
67°
39°
12
66°
39°
13
67°
38°
14
68°
38°
15
67°
39°
16
67°
40°
17
66°
40°
18
67°
39°
19
68°
38°
20
68°
38°
21
63°
31°
22
58°
31°
23
57°
33°
24
60°
40°
25
61°
39°
26
60°
35°
27
59°
34°
28
59°
33°
29
60°
34°
30
60°
36°
31
61°
35°
1
60°
36°
2
61°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Yucaipa
Yucaipa's December 2026 forecast shows daily high temperatures ranging from 57° to 68°, with overnight lows between 31° and 41°. The average high for December is 64° with an average low of 37°. 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 Yucaipa. See also: January | February | March.
