S
M
T
W
T
F
S
26
66°
35°
27
71°
38°
28
67°
44°
29
56°
44°
30
45°
37°
1
50°
31°
2
46°
34°
3
55°
36°
4
64°
41°
5
65°
46°
6
55°
42°
7
50°
38°
8
53°
38°
9
64°
39°
10
50°
41°
11
49°
35°
12
54°
33°
13
48°
43°
14
52°
44°
15
63°
44°
16
70°
49°
17
71°
53°
18
71°
46°
19
82°
63°
20
69°
43°
21
57°
36°
22
69°
43°
23
68°
48°
24
53°
48°
25
73°
52°
26
78°
56°
27
70°
48°
28
66°
48°
29
70°
48°
30
68°
50°
31
75°
54°
1
75°
53°
2
73°
53°
3
74°
54°
4
72°
50°
5
76°
56°
6
76°
55°
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 53° to 78°, with overnight lows between 43° and 56°. The average high for May is 71° with an average low of 51°. 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.
