S
M
T
W
T
F
S
26
85°
58°
27
84°
57°
28
82°
57°
29
84°
58°
30
79°
54°
1
83°
59°
2
88°
62°
3
88°
60°
4
85°
59°
5
81°
56°
6
81°
59°
7
82°
58°
8
83°
61°
9
87°
64°
10
90°
65°
11
91°
66°
12
91°
66°
13
90°
64°
14
91°
63°
15
90°
62°
16
89°
63°
17
89°
63°
18
88°
62°
19
86°
61°
20
85°
60°
21
84°
60°
22
85°
61°
23
86°
62°
24
89°
63°
25
87°
61°
26
88°
67°
27
93°
69°
28
96°
69°
29
92°
62°
30
90°
63°
31
90°
68°
1
93°
69°
2
99°
70°
3
98°
68°
4
98°
69°
5
96°
70°
6
96°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Joshua Tree National Park
Joshua Tree National Park's May 2026 forecast shows daily high temperatures ranging from 79° to 99°, with overnight lows between 54° and 72°. The average high for May is 88° with an average low of 63°. 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 National Park. See also: June | July | August.
