S
M
T
W
T
F
S
26
60°
46°
27
70°
45°
28
60°
49°
29
62°
53°
30
70°
50°
1
67°
45°
2
62°
50°
3
64°
43°
4
78°
50°
5
87°
58°
6
74°
60°
7
66°
54°
8
74°
51°
9
73°
56°
10
83°
54°
11
65°
53°
12
68°
49°
13
78°
56°
14
63°
54°
15
73°
54°
16
84°
63°
17
87°
61°
18
90°
67°
19
93°
71°
20
87°
58°
21
68°
55°
22
65°
56°
23
69°
59°
24
72°
62°
25
73°
64°
26
82°
64°
27
81°
65°
28
81°
65°
29
82°
60°
30
83°
66°
31
82°
65°
1
83°
66°
2
79°
66°
3
76°
67°
4
80°
67°
5
80°
65°
6
79°
67°
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 65° to 93°, with overnight lows between 55° and 71°. The average high for May is 80° with an average low of 64°. 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.
