S
M
T
W
T
F
S
26
88°
58°
27
90°
65°
28
87°
66°
29
85°
61°
30
90°
65°
31
92°
65°
1
85°
61°
2
78°
58°
3
78°
55°
4
86°
56°
5
87°
60°
6
94°
63°
7
99°
66°
8
95°
71°
9
85°
68°
10
92°
65°
11
91°
66°
12
87°
67°
13
87°
61°
14
83°
64°
15
80°
61°
16
89°
67°
17
92°
69°
18
91°
64°
19
89°
66°
20
93°
70°
21
92°
69°
22
89°
62°
23
84°
63°
24
86°
65°
25
88°
63°
26
87°
61°
27
83°
60°
28
84°
61°
29
93°
62°
30
79°
58°
31
87°
64°
1
86°
64°
2
86°
63°
3
85°
63°
4
85°
62°
5
84°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Wenatchee
Wenatchee's August 2026 forecast shows daily high temperatures ranging from 79° to 93°, with overnight lows between 58° and 70°. The average high for August is 87° with an average low of 64°. 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 Wenatchee. See also: September | October | November.