S
M
T
W
T
F
S
26
62°
35°
27
66°
43°
28
62°
47°
29
50°
36°
30
48°
31°
1
46°
29°
2
43°
30°
3
56°
30°
4
71°
44°
5
60°
43°
6
47°
35°
7
49°
31°
8
55°
33°
9
61°
38°
10
51°
34°
11
50°
31°
12
54°
29°
13
53°
39°
14
53°
39°
15
64°
34°
16
71°
49°
17
82°
53°
18
85°
61°
19
82°
45°
20
50°
37°
21
58°
35°
22
62°
40°
23
55°
44°
24
59°
44°
25
73°
51°
26
79°
57°
27
72°
52°
28
65°
46°
29
71°
39°
30
63°
45°
31
67°
46°
1
66°
48°
2
69°
49°
3
68°
48°
4
74°
55°
5
72°
54°
6
67°
52°
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 63° to 74°, with overnight lows between 39° and 55°. The average high for May is 69° 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 Dundalk. See also: June | July | August.
