S
M
T
W
T
F
S
26
70°
63°
27
68°
59°
28
70°
64°
29
70°
63°
30
72°
52°
31
N/A
1
70°
50°
2
79°
56°
3
81°
60°
4
75°
59°
5
73°
57°
6
70°
56°
7
71°
57°
8
70°
56°
9
73°
58°
10
73°
60°
11
72°
57°
12
73°
58°
13
71°
60°
14
72°
60°
15
72°
59°
16
71°
60°
17
71°
59°
18
70°
59°
19
70°
58°
20
68°
59°
21
67°
58°
22
66°
58°
23
66°
57°
24
67°
58°
25
66°
58°
26
67°
57°
27
68°
58°
28
67°
57°
29
65°
58°
30
65°
57°
31
64°
56°
1
64°
56°
2
65°
57°
3
65°
55°
4
64°
53°
5
62°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Barnstaple
Barnstaple's August 2026 forecast shows daily high temperatures ranging from 62° to 81°, with overnight lows between 50° and 60°. The average high for August is 69° with an average low of 57°. 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 Barnstaple. See also: September | October | November.
