S
M
T
W
T
F
S
28
60°
51°
29
61°
53°
30
62°
54°
1
62°
54°
2
61°
53°
3
62°
54°
4
62°
54°
5
63°
52°
6
62°
54°
7
62°
54°
8
63°
53°
9
62°
51°
10
62°
52°
11
63°
52°
12
64°
54°
13
65°
55°
14
66°
53°
15
67°
54°
16
66°
54°
17
67°
55°
18
67°
54°
19
66°
54°
20
66°
53°
21
65°
54°
22
67°
55°
23
67°
55°
24
66°
54°
25
67°
54°
26
68°
55°
27
67°
56°
28
66°
55°
29
68°
55°
30
68°
54°
31
67°
55°
1
67°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Castlerock
Castlerock's July 2026 forecast shows daily high temperatures ranging from 60° to 68°, with overnight lows between 51° and 56°. The average high for July is 65° with an average low of 54°. 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 Castlerock. See also: August | September | October.
