S
M
T
W
T
F
S
26
61°
51°
27
71°
40°
28
64°
41°
29
66°
56°
30
73°
44°
1
68°
38°
2
61°
43°
3
65°
32°
4
79°
35°
5
82°
52°
6
73°
63°
7
65°
44°
8
72°
38°
9
78°
42°
10
86°
51°
11
63°
39°
12
74°
36°
13
79°
42°
14
68°
43°
15
76°
38°
16
86°
59°
17
92°
64°
18
93°
63°
19
94°
65°
20
92°
67°
21
75°
52°
22
64°
53°
23
73°
55°
24
78°
59°
25
80°
59°
26
81°
57°
27
81°
59°
28
79°
58°
29
80°
57°
30
84°
62°
31
83°
61°
1
84°
62°
2
83°
62°
3
80°
63°
4
80°
62°
5
81°
59°
6
82°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mayo
Mayo's May 2026 forecast shows daily high temperatures ranging from 64° to 94°, with overnight lows between 52° and 67°. The average high for May is 82° with an average low of 60°. 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 Mayo. See also: June | July | August.