S
M
T
W
T
F
S
26
65°
37°
27
70°
36°
28
64°
38°
29
60°
45°
30
52°
45°
1
64°
43°
2
58°
44°
3
55°
34°
4
74°
38°
5
86°
51°
6
72°
52°
7
64°
40°
8
61°
33°
9
49°
33°
10
74°
49°
11
63°
45°
12
64°
40°
13
58°
40°
14
60°
50°
15
58°
46°
16
80°
42°
17
86°
53°
18
79°
55°
19
97°
54°
20
89°
65°
21
68°
51°
22
69°
39°
23
64°
44°
24
54°
51°
25
77°
52°
26
N/A
27
86°
54°
28
72°
49°
29
72°
51°
30
60°
45°
31
69°
47°
1
67°
45°
2
69°
49°
3
76°
53°
4
79°
55°
5
80°
57°
6
79°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Londonderry Town
Londonderry Town's May 2026 forecast shows daily high temperatures ranging from 60° to 86°, with overnight lows between 45° and 57°. The average high for May is 74° with an average low of 51°. 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 Londonderry Town. See also: June | July | August.
