S
M
T
W
T
F
S
26
58°
45°
27
62°
39°
28
71°
41°
29
77°
51°
30
78°
59°
1
81°
62°
2
82°
57°
3
77°
53°
4
62°
48°
5
63°
46°
6
77°
46°
7
86°
66°
8
92°
64°
9
95°
70°
10
94°
67°
11
96°
68°
12
89°
55°
13
89°
54°
14
88°
54°
15
83°
53°
16
82°
54°
17
80°
53°
18
82°
53°
19
84°
52°
20
83°
53°
21
76°
49°
22
77°
48°
23
78°
49°
24
80°
53°
25
84°
54°
26
84°
53°
27
82°
50°
28
80°
50°
29
80°
52°
30
82°
55°
31
84°
58°
1
85°
58°
2
88°
57°
3
87°
56°
4
82°
53°
5
81°
54°
6
82°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Joshua Tree
Joshua Tree's May 2026 forecast shows daily high temperatures ranging from 76° to 96°, with overnight lows between 48° and 70°. The average high for May is 84° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Joshua Tree. See also: June | July | August.
