S
M
T
W
T
F
S
28
89°
65°
29
90°
66°
30
91°
64°
1
93°
68°
2
95°
66°
3
96°
69°
4
98°
71°
5
98°
77°
6
102°
73°
7
102°
77°
8
106°
75°
9
108°
76°
10
108°
75°
11
106°
75°
12
99°
80°
13
102°
82°
14
108°
84°
15
113°
86°
16
114°
86°
17
110°
83°
18
108°
84°
19
109°
82°
20
108°
80°
21
107°
82°
22
103°
81°
23
106°
81°
24
107°
82°
25
110°
81°
26
108°
80°
27
112°
82°
28
111°
81°
29
110°
80°
30
107°
76°
31
106°
75°
1
106°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Joshua Tree National Park Headquarters
Joshua Tree National Park Headquarters's July 2026 forecast shows daily high temperatures ranging from 102° to 114°, with overnight lows between 75° and 86°. The average high for July is 108° with an average low of 81°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Joshua Tree National Park Headquarters. See also: August | September | October.