S
M
T
W
T
F
S
26
55°
40°
27
57°
42°
28
58°
41°
29
57°
42°
30
57°
43°
1
59°
45°
2
59°
45°
3
60°
44°
4
58°
44°
5
57°
45°
6
58°
45°
7
56°
46°
8
58°
46°
9
57°
45°
10
58°
46°
11
60°
46°
12
61°
45°
13
59°
45°
14
58°
46°
15
60°
47°
16
61°
46°
17
62°
47°
18
61°
48°
19
59°
47°
20
60°
46°
21
62°
48°
22
58°
48°
23
58°
47°
24
59°
47°
25
59°
46°
26
60°
46°
27
61°
46°
28
63°
47°
29
62°
45°
30
61°
44°
31
62°
42°
1
65°
44°
2
66°
46°
3
66°
48°
4
65°
47°
5
66°
51°
6
66°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mullaghboy
Mullaghboy's May 2026 forecast shows daily high temperatures ranging from 55° to 66°, with overnight lows between 40° and 52°. The average high for May is 60° with an average low of 46°. 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 Mullaghboy. See also: June | July | August.