S
M
T
W
T
F
S
26
62°
35°
27
66°
43°
28
62°
40°
29
45°
32°
30
43°
30°
1
40°
30°
2
42°
30°
3
48°
36°
4
52°
41°
5
52°
41°
6
50°
36°
7
49°
37°
8
48°
38°
9
49°
36°
10
50°
38°
11
51°
41°
12
61°
44°
13
64°
36°
14
55°
34°
15
55°
34°
16
56°
36°
17
57°
39°
18
60°
46°
19
64°
39°
20
57°
37°
21
57°
37°
22
58°
38°
23
59°
39°
24
64°
48°
25
68°
44°
26
60°
42°
27
60°
40°
28
61°
45°
29
68°
49°
30
71°
49°
31
65°
47°
1
68°
48°
2
72°
52°
3
72°
51°
4
71°
45°
5
62°
44°
6
63°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dundalk
Dundalk's May 2026 forecast shows daily high temperatures ranging from 40° to 72°, with overnight lows between 30° and 52°. The average high for May is 58° with an average low of 40°. 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 Dundalk. See also: June | July | August.
