S
M
T
W
T
F
S
26
87°
58°
27
89°
61°
28
86°
64°
29
86°
61°
30
89°
64°
31
98°
61°
1
87°
60°
2
78°
55°
3
82°
56°
4
89°
53°
5
94°
55°
6
97°
63°
7
98°
66°
8
92°
69°
9
91°
67°
10
90°
64°
11
90°
65°
12
87°
66°
13
87°
63°
14
89°
63°
15
88°
66°
16
91°
68°
17
88°
66°
18
90°
64°
19
86°
62°
20
87°
64°
21
90°
63°
22
88°
65°
23
92°
65°
24
91°
64°
25
93°
65°
26
93°
65°
27
88°
63°
28
79°
57°
29
78°
54°
30
80°
58°
31
87°
61°
1
88°
63°
2
86°
64°
3
87°
63°
4
87°
63°
5
85°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Walla Walla Regional Airport
Walla Walla Regional Airport's August 2026 forecast shows daily high temperatures ranging from 78° to 93°, with overnight lows between 54° and 68°. The average high for August is 87° with an average low of 63°. 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 Walla Walla Regional Airport. See also: September | October | November.
