S
M
T
W
T
F
S
26
68°
35°
27
59°
37°
28
60°
41°
29
69°
35°
30
78°
41°
1
71°
45°
2
67°
46°
3
88°
46°
4
73°
51°
5
65°
47°
6
70°
51°
7
71°
48°
8
68°
45°
9
78°
43°
10
70°
49°
11
79°
44°
12
78°
47°
13
63°
51°
14
62°
45°
15
60°
39°
16
59°
42°
17
65°
36°
18
70°
41°
19
70°
39°
20
71°
43°
21
82°
44°
22
81°
46°
23
75°
48°
24
77°
42°
25
62°
46°
26
65°
48°
27
78°
44°
28
80°
51°
29
65°
45°
30
67°
39°
31
72°
36°
1
83°
39°
2
86°
47°
3
69°
49°
4
72°
47°
5
66°
46°
6
56°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Willamina
Willamina's May 2026 forecast shows daily high temperatures ranging from 56° to 56°, with overnight lows between 43° and 43°. The average high for May is 56° 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 Willamina. See also: June | July | August.
