S
M
T
W
T
F
S
26
97°
81°
27
98°
79°
28
96°
77°
29
97°
76°
30
100°
71°
31
100°
72°
1
104°
82°
2
102°
79°
3
101°
79°
4
99°
76°
5
98°
77°
6
94°
75°
7
97°
78°
8
101°
77°
9
100°
80°
10
95°
80°
11
88°
75°
12
95°
72°
13
90°
73°
14
92°
67°
15
94°
74°
16
96°
75°
17
97°
71°
18
97°
69°
19
96°
68°
20
93°
66°
21
92°
69°
22
95°
71°
23
96°
70°
24
98°
71°
25
94°
68°
26
93°
69°
27
92°
70°
28
95°
71°
29
89°
70°
30
89°
69°
31
90°
69°
1
91°
67°
2
90°
66°
3
90°
66°
4
91°
64°
5
91°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Joshua Tree
Joshua Tree's August 2026 forecast shows daily high temperatures ranging from 89° to 98°, with overnight lows between 64° and 75°. The average high for August is 93° with an average low of 69°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Joshua Tree. See also: September | October | November.
