S
M
T
W
T
F
S
26
93°
74°
27
95°
71°
28
92°
69°
29
92°
71°
30
94°
73°
31
95°
72°
1
96°
73°
2
96°
73°
3
95°
72°
4
97°
71°
5
92°
70°
6
91°
70°
7
91°
71°
8
92°
70°
9
92°
72°
10
93°
74°
11
96°
75°
12
95°
74°
13
96°
75°
14
96°
73°
15
96°
72°
16
96°
74°
17
96°
74°
18
95°
73°
19
96°
74°
20
95°
69°
21
90°
72°
22
91°
73°
23
94°
73°
24
94°
72°
25
93°
73°
26
94°
72°
27
94°
72°
28
93°
71°
29
94°
71°
30
94°
72°
31
93°
72°
1
93°
71°
2
92°
71°
3
93°
70°
4
92°
71°
5
90°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Arizona
Arizona's August 2026 forecast shows daily high temperatures ranging from 90° to 97°, with overnight lows between 69° and 75°. The average high for August is 94° with an average low of 72°. 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 Arizona. See also: September | October | November.
