S
M
T
W
T
F
S
26
82°
59°
27
82°
63°
28
75°
64°
29
72°
62°
30
74°
60°
31
81°
59°
1
84°
62°
2
82°
61°
3
84°
59°
4
85°
63°
5
86°
63°
6
84°
62°
7
85°
62°
8
84°
58°
9
84°
61°
10
81°
61°
11
83°
61°
12
80°
60°
13
79°
61°
14
83°
60°
15
80°
59°
16
79°
59°
17
78°
58°
18
77°
59°
19
81°
60°
20
79°
59°
21
78°
58°
22
77°
59°
23
79°
60°
24
83°
52°
25
75°
51°
26
75°
58°
27
78°
60°
28
83°
60°
29
83°
59°
30
81°
55°
31
76°
50°
1
74°
50°
2
73°
51°
3
73°
49°
4
74°
50°
5
75°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in West Cornwall
West Cornwall's August 2026 forecast shows daily high temperatures ranging from 72° to 86°, with overnight lows between 49° and 64°. The average high for August is 80° with an average low of 58°. 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 West Cornwall. See also: September | October | November.
