S
M
T
W
T
F
S
29
58°
37°
30
60°
38°
1
55°
39°
2
59°
36°
3
58°
36°
4
63°
39°
5
63°
33°
6
58°
31°
7
57°
33°
8
56°
36°
9
58°
30°
10
55°
33°
11
54°
35°
12
55°
32°
13
55°
30°
14
56°
29°
15
54°
29°
16
54°
31°
17
56°
31°
18
58°
33°
19
60°
31°
20
56°
29°
21
54°
29°
22
55°
28°
23
54°
28°
24
53°
29°
25
54°
30°
26
55°
31°
27
55°
31°
28
56°
29°
29
55°
28°
30
54°
30°
31
54°
31°
1
56°
32°
2
58°
32°
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 63°, with overnight lows between 28° and 39°. The average high for December is 56° with an average low of 32°. 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.
