S
M
T
W
T
F
S
28
77°
62°
29
79°
57°
30
75°
54°
1
86°
70°
2
89°
72°
3
100°
74°
4
94°
69°
5
82°
66°
6
75°
65°
7
78°
62°
8
78°
67°
9
82°
66°
10
80°
66°
11
81°
67°
12
81°
66°
13
83°
67°
14
82°
64°
15
73°
62°
16
74°
63°
17
75°
67°
18
75°
67°
19
76°
66°
20
76°
68°
21
77°
68°
22
76°
67°
23
76°
68°
24
77°
68°
25
76°
67°
26
76°
68°
27
77°
68°
28
78°
67°
29
78°
68°
30
79°
69°
31
81°
69°
1
80°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Barnstable
Barnstable's July 2026 forecast shows daily high temperatures ranging from 73° to 100°, with overnight lows between 62° and 74°. The average high for July is 80° with an average low of 67°. 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 Barnstable. See also: August | September | October.
