S
M
T
W
T
F
S
26
108°
88°
27
109°
90°
28
104°
84°
29
108°
88°
30
109°
90°
31
113°
90°
1
113°
87°
2
111°
90°
3
113°
90°
4
104°
87°
5
102°
90°
6
104°
84°
7
108°
87°
8
109°
93°
9
109°
88°
10
108°
84°
11
106°
83°
12
100°
79°
13
100°
82°
14
101°
83°
15
104°
80°
16
106°
82°
17
108°
84°
18
106°
81°
19
103°
79°
20
103°
78°
21
104°
78°
22
105°
79°
23
103°
75°
24
101°
75°
25
99°
72°
26
98°
71°
27
97°
71°
28
100°
75°
29
103°
77°
30
105°
77°
31
105°
78°
1
104°
77°
2
103°
77°
3
102°
76°
4
103°
76°
5
103°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mesa
Mesa's August 2026 forecast shows daily high temperatures ranging from 97° to 108°, with overnight lows between 71° and 84°. The average high for August is 103° with an average low of 78°. 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 Mesa. See also: September | October | November.
