S
M
T
W
T
F
S
29
55°
33°
30
59°
33°
1
57°
33°
2
58°
35°
3
59°
36°
4
62°
38°
5
61°
31°
6
59°
33°
7
58°
35°
8
61°
35°
9
63°
34°
10
63°
36°
11
62°
34°
12
62°
35°
13
62°
35°
14
63°
34°
15
63°
35°
16
62°
35°
17
63°
36°
18
63°
35°
19
64°
35°
20
64°
36°
21
61°
29°
22
54°
28°
23
53°
30°
24
55°
38°
25
56°
37°
26
55°
33°
27
55°
33°
28
54°
31°
29
55°
32°
30
55°
35°
31
56°
34°
1
55°
34°
2
56°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Joshua Tree
Joshua Tree's December 2026 forecast shows daily high temperatures ranging from 53° to 64°, with overnight lows between 28° and 38°. The average high for December is 59° with an average low of 34°. 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 Joshua Tree. See also: January | February | March.
