S
M
T
W
T
F
S
26
99°
75°
27
101°
80°
28
93°
71°
29
100°
76°
30
103°
79°
31
105°
82°
1
104°
83°
2
103°
82°
3
105°
82°
4
99°
79°
5
99°
80°
6
101°
76°
7
103°
72°
8
103°
77°
9
105°
79°
10
100°
75°
11
96°
77°
12
90°
70°
13
91°
67°
14
93°
72°
15
98°
71°
16
109°
79°
17
106°
80°
18
106°
81°
19
106°
79°
20
105°
78°
21
106°
78°
22
108°
77°
23
104°
79°
24
102°
77°
25
104°
76°
26
104°
78°
27
103°
77°
28
106°
78°
29
104°
76°
30
99°
68°
31
98°
72°
1
98°
72°
2
97°
71°
3
99°
72°
4
99°
71°
5
97°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Tonto National Monument
Tonto National Monument's August 2026 forecast shows daily high temperatures ranging from 97° to 109°, with overnight lows between 68° and 81°. The average high for August is 103° with an average low of 76°. 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 Tonto National Monument. See also: September | October | November.
