S
M
T
W
T
F
S
26
100°
76°
27
96°
80°
28
101°
76°
29
98°
75°
30
99°
74°
31
94°
74°
1
95°
75°
2
96°
74°
3
97°
74°
4
96°
76°
5
95°
75°
6
94°
74°
7
95°
75°
8
96°
75°
9
97°
76°
10
97°
76°
11
98°
73°
12
94°
74°
13
95°
75°
14
96°
75°
15
95°
76°
16
97°
79°
17
98°
77°
18
95°
75°
19
96°
77°
20
99°
78°
21
100°
77°
22
97°
76°
23
96°
75°
24
95°
74°
25
98°
76°
26
98°
78°
27
99°
79°
28
98°
77°
29
95°
80°
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 101°, with overnight lows between 73° 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.