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°
52°
11
87°
54°
12
83°
58°
13
82°
56°
14
79°
53°
15
76°
54°
16
84°
57°
17
84°
53°
18
83°
56°
19
89°
54°
20
94°
56°
21
82°
57°
22
76°
50°
23
82°
60°
24
92°
49°
25
81°
56°
26
82°
53°
27
78°
53°
28
80°
50°
29
77°
49°
30
78°
50°
31
79°
53°
1
73°
52°
2
71°
52°
3
73°
47°
4
79°
53°
5
79°
50°
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 71° to 82°, with overnight lows between 47° and 53°. The average high for August is 77° with an average low of 51°. 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.
