S
M
T
W
T
F
S
26
94°
69°
27
94°
69°
28
96°
70°
29
99°
69°
30
94°
70°
31
94°
69°
1
96°
70°
2
97°
69°
3
94°
69°
4
94°
68°
5
95°
68°
6
95°
71°
7
100°
71°
8
99°
72°
9
101°
73°
10
102°
71°
11
98°
68°
12
94°
72°
13
98°
70°
14
96°
68°
15
96°
71°
16
100°
72°
17
101°
72°
18
102°
73°
19
102°
72°
20
101°
72°
21
101°
70°
22
97°
69°
23
99°
69°
24
98°
68°
25
97°
66°
26
98°
66°
27
100°
69°
28
100°
67°
29
98°
69°
30
99°
67°
31
101°
69°
1
100°
68°
2
101°
69°
3
100°
66°
4
94°
63°
5
92°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Oro Valley
Oro Valley's August 2026 forecast shows daily high temperatures ranging from 92° to 102°, with overnight lows between 63° and 73°. The average high for August is 98° with an average low of 69°. 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 Oro Valley. See also: September | October | November.
