S
M
T
W
T
F
S
26
63°
43°
27
57°
39°
28
55°
39°
29
62°
45°
30
65°
50°
1
64°
49°
2
58°
44°
3
56°
43°
4
55°
43°
5
54°
41°
6
54°
42°
7
55°
45°
8
56°
45°
9
56°
44°
10
58°
45°
11
57°
46°
12
56°
44°
13
54°
45°
14
55°
46°
15
56°
48°
16
59°
47°
17
57°
47°
18
58°
48°
19
57°
48°
20
57°
47°
21
58°
48°
22
57°
47°
23
56°
46°
24
56°
46°
25
57°
44°
26
56°
44°
27
57°
49°
28
59°
50°
29
59°
48°
30
58°
45°
31
57°
45°
1
57°
46°
2
58°
45°
3
57°
45°
4
57°
46°
5
58°
45°
6
57°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ballymena
Ballymena's May 2026 forecast shows daily high temperatures ranging from 54° to 65°, with overnight lows between 41° and 50°. The average high for May is 57° 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 Ballymena. See also: June | July | August.
