S
M
T
W
T
F
S
28
84°
58°
29
87°
54°
30
85°
55°
1
96°
68°
2
96°
69°
3
94°
71°
4
89°
63°
5
86°
57°
6
79°
63°
7
72°
61°
8
88°
58°
9
92°
60°
10
86°
60°
11
84°
54°
12
84°
51°
13
89°
54°
14
91°
63°
15
83°
58°
16
86°
55°
17
80°
51°
18
73°
58°
19
78°
54°
20
81°
50°
21
72°
55°
22
81°
58°
23
78°
50°
24
84°
49°
25
84°
51°
26
82°
52°
27
87°
54°
28
81°
61°
29
71°
62°
30
77°
63°
31
82°
61°
1
86°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Londonderry
Londonderry's July 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for July is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Londonderry. See also: August | September | October.
