S
M
T
W
T
F
S
26
96°
70°
27
96°
69°
28
95°
66°
29
94°
64°
30
93°
65°
31
93°
64°
1
94°
65°
2
95°
68°
3
101°
70°
4
102°
70°
5
99°
71°
6
100°
72°
7
101°
71°
8
100°
69°
9
100°
67°
10
98°
68°
11
98°
68°
12
100°
70°
13
98°
69°
14
98°
67°
15
95°
67°
16
96°
65°
17
94°
65°
18
92°
64°
19
91°
65°
20
91°
65°
21
92°
64°
22
91°
64°
23
91°
65°
24
92°
67°
25
94°
70°
26
96°
66°
27
93°
67°
28
96°
69°
29
97°
68°
30
96°
68°
31
94°
67°
1
91°
67°
2
92°
65°
3
94°
64°
4
94°
65°
5
93°
67°
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 91° to 102°, with overnight lows between 64° and 72°. The average high for August is 95° with an average low of 67°. 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.
