S
M
T
W
T
F
S
26
113°
90°
27
107°
89°
28
108°
88°
29
107°
84°
30
109°
85°
31
112°
88°
1
114°
86°
2
114°
85°
3
109°
83°
4
106°
81°
5
106°
81°
6
105°
77°
7
106°
81°
8
105°
81°
9
106°
80°
10
105°
80°
11
100°
78°
12
103°
78°
13
101°
76°
14
100°
79°
15
103°
79°
16
100°
78°
17
102°
79°
18
105°
79°
19
104°
78°
20
105°
79°
21
106°
79°
22
105°
78°
23
105°
79°
24
106°
79°
25
105°
78°
26
105°
78°
27
104°
79°
28
105°
77°
29
104°
77°
30
102°
76°
31
103°
77°
1
104°
77°
2
104°
75°
3
98°
75°
4
102°
74°
5
102°
79°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Tempe
Tempe's August 2026 forecast shows daily high temperatures ranging from 98° to 114°, with overnight lows between 74° and 90°. The average high for August is 105° with an average low of 80°. 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 Tempe. See also: September | October | November.
