S
M
T
W
T
F
S
26
64°
42°
27
63°
43°
28
60°
36°
29
56°
38°
30
57°
41°
1
57°
39°
2
58°
38°
3
57°
38°
4
57°
40°
5
56°
39°
6
58°
38°
7
60°
39°
8
64°
40°
9
68°
46°
10
69°
46°
11
66°
45°
12
61°
42°
13
62°
40°
14
61°
41°
15
61°
42°
16
60°
41°
17
60°
40°
18
65°
43°
19
64°
42°
20
61°
47°
21
62°
45°
22
62°
49°
23
61°
44°
24
61°
43°
25
62°
42°
26
62°
42°
27
65°
44°
28
69°
46°
29
67°
46°
30
69°
43°
31
67°
50°
1
64°
45°
2
66°
44°
3
71°
47°
4
70°
46°
5
73°
50°
6
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Corvallis
Corvallis's May 2026 forecast shows daily high temperatures ranging from 56° to 75°, with overnight lows between 36° and 53°. The average high for May is 63° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Corvallis. See also: June | July | August.
