S
M
T
W
T
F
S
26
105°
83°
27
105°
85°
28
103°
80°
29
108°
83°
30
109°
85°
31
109°
84°
1
111°
86°
2
109°
87°
3
107°
81°
4
105°
79°
5
104°
72°
6
103°
72°
7
107°
82°
8
109°
83°
9
110°
82°
10
105°
78°
11
100°
79°
12
96°
77°
13
95°
70°
14
98°
76°
15
103°
76°
16
N/A
17
105°
82°
18
104°
81°
19
105°
78°
20
103°
78°
21
103°
78°
22
104°
78°
23
100°
77°
24
101°
76°
25
101°
76°
26
103°
79°
27
102°
77°
28
103°
78°
29
105°
77°
30
109°
79°
31
94°
74°
1
93°
75°
2
93°
76°
3
95°
76°
4
95°
75°
5
96°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Tucson
Tucson's August 2026 forecast shows daily high temperatures ranging from 93° to 109°, with overnight lows between 74° and 82°. The average high for August is 101° with an average low of 77°. 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 Tucson. See also: September | October | November.