S
M
T
W
T
F
S
26
102°
80°
27
100°
77°
28
98°
76°
29
95°
79°
30
100°
80°
31
99°
79°
1
100°
80°
2
99°
78°
3
95°
72°
4
94°
78°
5
97°
79°
6
101°
80°
7
100°
81°
8
101°
79°
9
100°
80°
10
101°
79°
11
102°
76°
12
95°
79°
13
99°
78°
14
99°
70°
15
101°
78°
16
Hist. Avg.
100°
74°
17
Hist. Avg.
100°
74°
18
Hist. Avg.
100°
74°
19
Hist. Avg.
100°
74°
20
Hist. Avg.
100°
74°
21
Hist. Avg.
100°
74°
22
Hist. Avg.
100°
74°
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 70° and 81°. The average high for August is 99° with an average low of 78°. 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.