S
M
T
W
T
F
S
26
50°
27°
27
53°
26°
28
56°
36°
29
62°
36°
30
65°
31°
1
72°
31°
2
74°
37°
3
77°
39°
4
68°
41°
5
63°
38°
6
69°
31°
7
75°
41°
8
71°
42°
9
72°
39°
10
77°
41°
11
72°
38°
12
79°
46°
13
71°
46°
14
77°
41°
15
74°
47°
16
73°
45°
17
74°
44°
18
73°
45°
19
74°
46°
20
75°
47°
21
61°
42°
22
60°
39°
23
61°
36°
24
64°
37°
25
70°
42°
26
71°
46°
27
67°
42°
28
69°
42°
29
65°
40°
30
69°
43°
31
73°
46°
1
74°
47°
2
74°
46°
3
66°
38°
4
62°
37°
5
68°
41°
6
71°
46°
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 60° to 79°, with overnight lows between 36° and 47°. The average high for May is 70° 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.
