S
M
T
W
T
F
S
26
80°
44°
27
76°
44°
28
72°
41°
29
71°
40°
30
73°
41°
31
72°
40°
1
71°
41°
2
71°
39°
3
70°
46°
4
71°
48°
5
72°
41°
6
75°
42°
7
Hist. Avg.
85°
50°
8
Hist. Avg.
85°
49°
9
Hist. Avg.
85°
49°
10
Hist. Avg.
85°
49°
11
Hist. Avg.
84°
49°
12
Hist. Avg.
84°
49°
13
Hist. Avg.
84°
48°
14
Hist. Avg.
84°
48°
15
Hist. Avg.
84°
48°
16
Hist. Avg.
83°
48°
17
Hist. Avg.
83°
48°
18
Hist. Avg.
83°
48°
19
Hist. Avg.
83°
47°
20
Hist. Avg.
83°
47°
21
Hist. Avg.
82°
47°
22
Hist. Avg.
82°
47°
23
Hist. Avg.
82°
46°
24
Hist. Avg.
82°
46°
25
Hist. Avg.
81°
46°
26
Hist. Avg.
81°
46°
27
Hist. Avg.
81°
46°
28
Hist. Avg.
81°
45°
29
Hist. Avg.
80°
45°
30
Hist. Avg.
80°
45°
31
Hist. Avg.
80°
45°
1
Hist. Avg.
80°
45°
2
Hist. Avg.
80°
44°
3
Hist. Avg.
79°
44°
4
Hist. Avg.
79°
44°
5
Hist. Avg.
79°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Willamette Pass
Willamette Pass's August 2026 forecast shows daily high temperatures ranging from 70° to 80°, with overnight lows between 39° and 48°. The average high for August is 73° with an average low of 42°. 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 Willamette Pass. See also: September | October | November.