S
M
T
W
T
F
S
28
79°
64°
29
77°
59°
30
77°
61°
1
80°
62°
2
80°
58°
3
82°
62°
4
85°
63°
5
83°
62°
6
86°
66°
7
89°
68°
8
87°
67°
9
85°
65°
10
84°
67°
11
85°
65°
12
83°
63°
13
77°
56°
14
75°
55°
15
75°
54°
16
74°
56°
17
76°
56°
18
76°
55°
19
73°
53°
20
71°
56°
21
76°
57°
22
76°
57°
23
77°
56°
24
76°
58°
25
77°
58°
26
78°
57°
27
78°
56°
28
77°
58°
29
78°
58°
30
79°
57°
31
80°
59°
1
81°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Custom House
Custom House's July 2026 forecast shows daily high temperatures ranging from 71° to 89°, with overnight lows between 53° and 68°. The average high for July is 79° 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 July weather will actually feel in Custom House. See also: August | September | October.
