S
M
T
W
T
F
S
31
52°
34°
1
62°
35°
2
56°
36°
3
65°
33°
4
76°
40°
5
67°
39°
6
69°
39°
7
70°
46°
8
63°
38°
9
72°
38°
10
86°
47°
11
86°
54°
12
81°
53°
13
58°
51°
14
76°
51°
15
67°
51°
16
72°
48°
17
79°
44°
18
75°
45°
19
72°
55°
20
70°
51°
21
65°
43°
22
73°
42°
23
65°
52°
24
67°
56°
25
69°
53°
26
73°
53°
27
72°
58°
28
72°
59°
29
78°
53°
30
78°
54°
1
72°
56°
2
83°
61°
3
78°
56°
4
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Londonderry
Londonderry's June 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 53° and 61°. The average high for June is 77° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Londonderry. See also: July | August | September.