S
M
T
W
T
F
S
26
63°
43°
27
57°
39°
28
55°
39°
29
59°
39°
30
64°
46°
1
63°
52°
2
61°
48°
3
52°
46°
4
57°
46°
5
54°
37°
6
54°
37°
7
57°
43°
8
54°
43°
9
54°
39°
10
57°
30°
11
54°
37°
12
54°
45°
13
54°
43°
14
54°
43°
15
53°
40°
16
54°
42°
17
53°
40°
18
55°
51°
19
60°
50°
20
63°
52°
21
64°
54°
22
67°
53°
23
66°
52°
24
66°
50°
25
64°
50°
26
62°
47°
27
61°
48°
28
59°
45°
29
58°
47°
30
58°
47°
31
59°
49°
1
59°
50°
2
63°
50°
3
61°
49°
4
61°
50°
5
60°
50°
6
60°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Derrytrasna
Derrytrasna's May 2026 forecast shows daily high temperatures ranging from 53° to 67°, with overnight lows between 40° and 54°. The average high for May is 60° with an average low of 48°. 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 Derrytrasna. See also: June | July | August.