S
M
T
W
T
F
S
26
81°
60°
27
81°
60°
28
80°
61°
29
80°
60°
30
79°
60°
31
74°
59°
1
74°
59°
2
73°
58°
3
72°
59°
4
73°
58°
5
74°
59°
6
73°
57°
7
73°
56°
8
74°
58°
9
74°
59°
10
73°
59°
11
73°
58°
12
72°
58°
13
74°
57°
14
76°
58°
15
73°
58°
16
71°
57°
17
72°
57°
18
72°
56°
19
73°
57°
20
72°
58°
21
72°
51°
22
72°
50°
23
71°
48°
24
70°
54°
25
71°
56°
26
75°
49°
27
71°
48°
28
70°
56°
29
69°
55°
30
79°
47°
31
69°
47°
1
70°
53°
2
74°
54°
3
68°
47°
4
68°
55°
5
70°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Oregon
Oregon's August 2026 forecast shows daily high temperatures ranging from 68° to 81°, with overnight lows between 47° and 61°. The average high for August is 73° with an average low of 56°. 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 Oregon. See also: September | October | November.
