S
M
T
W
T
F
S
26
65°
32°
27
73°
36°
28
69°
38°
29
67°
38°
30
49°
40°
1
53°
34°
2
46°
33°
3
46°
30°
4
63°
30°
5
78°
46°
6
52°
42°
7
53°
35°
8
50°
30°
9
55°
27°
10
61°
41°
11
52°
33°
12
52°
32°
13
46°
30°
14
55°
44°
15
62°
51°
16
75°
49°
17
74°
55°
18
80°
46°
19
83°
67°
20
75°
39°
21
55°
35°
22
63°
44°
23
64°
47°
24
58°
42°
25
60°
46°
26
68°
48°
27
69°
46°
28
72°
47°
29
72°
45°
30
75°
48°
31
75°
51°
1
73°
44°
2
65°
48°
3
65°
46°
4
63°
49°
5
66°
49°
6
72°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Willoughby
Willoughby's May 2026 forecast shows daily high temperatures ranging from 55° to 83°, with overnight lows between 35° and 67°. The average high for May is 68° 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 Willoughby. See also: June | July | August.
