S
M
T
W
T
F
S
26
108°
88°
27
111°
90°
28
111°
88°
29
112°
90°
30
114°
91°
31
114°
90°
1
114°
86°
2
111°
85°
3
111°
83°
4
109°
84°
5
106°
83°
6
101°
80°
7
100°
79°
8
102°
80°
9
106°
77°
10
106°
80°
11
105°
78°
12
103°
79°
13
101°
78°
14
102°
79°
15
102°
79°
16
103°
78°
17
105°
79°
18
101°
79°
19
104°
78°
20
105°
79°
21
106°
79°
22
106°
78°
23
104°
77°
24
100°
78°
25
99°
75°
26
99°
75°
27
102°
78°
28
101°
75°
29
98°
72°
30
99°
73°
31
100°
74°
1
103°
76°
2
102°
76°
3
101°
71°
4
97°
69°
5
98°
72°
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 114°, with overnight lows between 69° and 91°. The average high for August is 104° with an average low of 79°. 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.
