S
M
T
W
T
F
S
26
79°
68°
27
81°
68°
28
81°
67°
29
78°
66°
30
76°
64°
31
75°
65°
1
76°
66°
2
76°
62°
3
77°
61°
4
75°
62°
5
76°
63°
6
Hist. Avg.
78°
64°
7
Hist. Avg.
78°
64°
8
Hist. Avg.
78°
64°
9
Hist. Avg.
78°
64°
10
Hist. Avg.
78°
64°
11
Hist. Avg.
78°
64°
12
Hist. Avg.
78°
64°
13
Hist. Avg.
77°
64°
14
Hist. Avg.
77°
64°
15
Hist. Avg.
77°
64°
16
Hist. Avg.
77°
63°
17
Hist. Avg.
77°
63°
18
Hist. Avg.
77°
63°
19
Hist. Avg.
77°
63°
20
Hist. Avg.
77°
63°
21
Hist. Avg.
77°
63°
22
Hist. Avg.
76°
63°
23
Hist. Avg.
76°
62°
24
Hist. Avg.
76°
62°
25
Hist. Avg.
76°
62°
26
Hist. Avg.
76°
62°
27
Hist. Avg.
76°
62°
28
Hist. Avg.
76°
62°
29
Hist. Avg.
76°
61°
30
Hist. Avg.
75°
61°
31
Hist. Avg.
75°
61°
1
Hist. Avg.
75°
61°
2
Hist. Avg.
75°
60°
3
Hist. Avg.
74°
60°
4
Hist. Avg.
74°
60°
5
Hist. Avg.
74°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Barnstable
Barnstable's August 2026 forecast shows daily high temperatures ranging from 75° to 81°, with overnight lows between 61° and 68°. The average high for August is 77° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Barnstable. See also: September | October | November.
