S
M
T
W
T
F
S
26
67°
23°
27
72°
28°
28
58°
44°
29
53°
33°
30
48°
24°
1
47°
21°
2
46°
26°
3
56°
27°
4
70°
43°
5
63°
39°
6
51°
36°
7
54°
29°
8
54°
29°
9
65°
29°
10
54°
30°
11
52°
25°
12
59°
21°
13
59°
40°
14
46°
38°
15
71°
31°
16
69°
37°
17
79°
39°
18
87°
51°
19
84°
65°
20
67°
41°
21
58°
29°
22
67°
26°
23
61°
45°
24
55°
50°
25
74°
49°
26
80°
53°
27
73°
43°
28
69°
41°
29
59°
43°
30
67°
45°
31
68°
44°
1
70°
47°
2
72°
49°
3
73°
46°
4
75°
47°
5
70°
51°
6
70°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Carlow/Mayo
Carlow/Mayo's May 2026 forecast shows daily high temperatures ranging from 55° to 80°, with overnight lows between 41° and 53°. The average high for May is 69° 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 Carlow/Mayo. See also: June | July | August.
