S
M
T
W
T
F
S
26
60°
37°
27
55°
48°
28
56°
41°
29
66°
37°
30
72°
42°
1
64°
49°
2
78°
51°
3
91°
51°
4
70°
51°
5
67°
48°
6
67°
46°
7
65°
45°
8
67°
47°
9
66°
46°
10
69°
47°
11
67°
45°
12
67°
46°
13
64°
47°
14
63°
42°
15
64°
45°
16
61°
45°
17
60°
44°
18
59°
43°
19
61°
45°
20
61°
45°
21
60°
46°
22
60°
43°
23
65°
45°
24
68°
49°
25
69°
49°
26
68°
47°
27
63°
46°
28
64°
45°
29
65°
48°
30
68°
49°
31
61°
49°
1
61°
48°
2
62°
47°
3
61°
47°
4
61°
45°
5
63°
46°
6
65°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Willapa
Willapa's May 2026 forecast shows daily high temperatures ranging from 59° to 91°, with overnight lows between 42° and 51°. The average high for May is 65° with an average low of 47°. 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 Willapa. See also: June | July | August.
