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