S
M
T
W
T
F
S
26
70°
63°
27
68°
59°
28
70°
64°
29
70°
63°
30
72°
52°
31
70°
43°
1
69°
48°
2
79°
55°
3
81°
60°
4
74°
59°
5
71°
54°
6
70°
55°
7
75°
57°
8
70°
56°
9
73°
58°
10
73°
60°
11
74°
59°
12
71°
59°
13
72°
58°
14
72°
60°
15
70°
59°
16
67°
58°
17
66°
58°
18
66°
57°
19
65°
55°
20
65°
56°
21
66°
53°
22
65°
53°
23
65°
57°
24
67°
58°
25
68°
58°
26
67°
57°
27
67°
55°
28
68°
58°
29
68°
57°
30
69°
58°
31
69°
58°
1
65°
57°
2
64°
56°
3
64°
54°
4
64°
55°
5
64°
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 64° to 81°, with overnight lows between 48° 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.
