S
M
T
W
T
F
S
26
100°
70°
27
97°
71°
28
99°
69°
29
100°
70°
30
98°
68°
31
94°
68°
1
95°
69°
2
97°
66°
3
96°
63°
4
94°
64°
5
95°
63°
6
94°
64°
7
95°
65°
8
94°
65°
9
94°
66°
10
95°
68°
11
95°
67°
12
96°
65°
13
95°
65°
14
94°
64°
15
94°
66°
16
93°
67°
17
94°
69°
18
94°
72°
19
97°
73°
20
97°
71°
21
95°
65°
22
94°
65°
23
92°
69°
24
92°
69°
25
95°
67°
26
96°
66°
27
94°
64°
28
92°
66°
29
92°
64°
30
91°
64°
31
91°
68°
1
93°
64°
2
Hist. Avg.
101°
72°
3
Hist. Avg.
101°
72°
4
Hist. Avg.
101°
72°
5
Hist. Avg.
101°
72°
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 100°, with overnight lows between 63° and 73°. 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.
