S
M
T
W
T
F
S
26
101°
78°
27
102°
77°
28
100°
78°
29
101°
75°
30
98°
74°
31
96°
72°
1
94°
73°
2
94°
76°
3
95°
77°
4
96°
79°
5
100°
79°
6
99°
78°
7
100°
80°
8
99°
79°
9
98°
77°
10
96°
76°
11
95°
77°
12
97°
74°
13
95°
74°
14
95°
75°
15
97°
75°
16
96°
76°
17
96°
76°
18
97°
74°
19
94°
74°
20
96°
76°
21
95°
75°
22
95°
73°
23
Hist. Avg.
100°
74°
24
Hist. Avg.
100°
74°
25
Hist. Avg.
100°
74°
26
Hist. Avg.
100°
74°
27
Hist. Avg.
100°
74°
28
Hist. Avg.
99°
73°
29
Hist. Avg.
99°
73°
30
Hist. Avg.
99°
73°
31
Hist. Avg.
99°
73°
1
Hist. Avg.
99°
73°
2
Hist. Avg.
99°
73°
3
Hist. Avg.
99°
72°
4
Hist. Avg.
99°
72°
5
Hist. Avg.
99°
72°
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 94° to 102°, with overnight lows between 72° and 80°. The average high for August is 97° 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 Tucson. See also: September | October | November.