S
M
T
W
T
F
S
27
75°
38°
28
74°
37°
29
75°
44°
30
75°
54°
1
81°
44°
2
81°
45°
3
81°
45°
4
83°
44°
5
82°
44°
6
78°
44°
7
81°
40°
8
82°
41°
9
65°
44°
10
62°
36°
11
66°
32°
12
68°
30°
13
74°
35°
14
74°
42°
15
76°
42°
16
77°
50°
17
67°
41°
18
67°
45°
19
61°
45°
20
63°
37°
21
62°
42°
22
59°
42°
23
57°
40°
24
58°
39°
25
61°
42°
26
60°
40°
27
59°
41°
28
60°
42°
29
61°
41°
30
61°
41°
31
62°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Corvallis
Corvallis's October 2026 forecast shows daily high temperatures ranging from 57° to 77°, with overnight lows between 37° and 50°. The average high for October is 64° 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 October weather will actually feel in Corvallis. See also: November | December | January.