S
M
T
W
T
F
S
31
72°
52°
1
72°
52°
2
73°
50°
3
73°
51°
4
74°
52°
5
81°
60°
6
83°
61°
7
83°
62°
8
82°
62°
9
82°
60°
10
76°
54°
11
75°
53°
12
76°
54°
13
81°
56°
14
77°
54°
15
75°
54°
16
77°
57°
17
78°
56°
18
80°
56°
19
84°
63°
20
86°
64°
21
86°
65°
22
85°
65°
23
87°
64°
24
87°
65°
25
86°
66°
26
80°
58°
27
81°
63°
28
86°
62°
29
82°
59°
30
81°
58°
1
82°
65°
2
86°
66°
3
83°
66°
4
87°
67°
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 87°, with overnight lows between 50° and 67°. The average high for June is 81° with an average low of 59°. 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.