S
M
T
W
T
F
S
28
79°
60°
29
81°
54°
30
82°
55°
1
81°
56°
2
80°
58°
3
79°
56°
4
78°
62°
5
80°
59°
6
80°
55°
7
79°
56°
8
83°
61°
9
81°
62°
10
80°
62°
11
81°
61°
12
80°
57°
13
86°
61°
14
86°
61°
15
87°
62°
16
83°
63°
17
80°
62°
18
80°
63°
19
85°
61°
20
87°
57°
21
86°
64°
22
88°
64°
23
87°
61°
24
83°
61°
25
85°
60°
26
79°
63°
27
80°
62°
28
83°
62°
29
87°
58°
30
86°
60°
31
87°
64°
1
87°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Derry
Derry's July 2026 forecast shows daily high temperatures ranging from 78° to 88°, with overnight lows between 54° and 64°. The average high for July is 83° with an average low of 60°. 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 Derry. See also: August | September | October.
