S
M
T
W
T
F
S
26
79°
52°
27
84°
44°
28
81°
48°
29
81°
56°
30
83°
47°
31
89°
50°
1
75°
55°
2
78°
50°
3
86°
50°
4
93°
46°
5
94°
51°
6
94°
57°
7
92°
55°
8
93°
55°
9
87°
54°
10
87°
54°
11
87°
59°
12
82°
52°
13
86°
56°
14
86°
57°
15
86°
56°
16
83°
57°
17
83°
55°
18
81°
54°
19
85°
56°
20
85°
56°
21
88°
58°
22
90°
58°
23
92°
61°
24
79°
54°
25
76°
54°
26
79°
55°
27
76°
53°
28
76°
51°
29
75°
52°
30
75°
51°
31
77°
52°
1
77°
54°
2
74°
48°
3
78°
53°
4
83°
54°
5
82°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Corvallis
Corvallis's August 2026 forecast shows daily high temperatures ranging from 74° to 92°, with overnight lows between 48° and 61°. The average high for August is 82° with an average low of 55°. 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 Corvallis. See also: September | October | November.
