S
M
T
W
T
F
S
28
81°
68°
29
88°
63°
30
91°
68°
1
91°
77°
2
97°
72°
3
96°
70°
4
88°
69°
5
85°
69°
6
81°
65°
7
82°
63°
8
83°
64°
9
84°
65°
10
85°
64°
11
84°
64°
12
82°
63°
13
83°
63°
14
85°
64°
15
82°
60°
16
78°
56°
17
79°
57°
18
80°
58°
19
85°
63°
20
84°
63°
21
79°
62°
22
82°
63°
23
84°
64°
24
83°
63°
25
84°
61°
26
85°
63°
27
86°
64°
28
85°
63°
29
86°
64°
30
86°
65°
31
85°
64°
1
83°
63°
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 97°, with overnight lows between 56° and 72°. The average high for July is 84° with an average low of 64°. 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.
