S
M
T
W
T
F
S
26
70°
63°
27
70°
61°
28
73°
63°
29
70°
59°
30
68°
57°
31
68°
54°
1
70°
52°
2
73°
50°
3
75°
54°
4
72°
63°
5
70°
57°
6
68°
55°
7
68°
48°
8
72°
52°
9
75°
55°
10
75°
57°
11
75°
55°
12
81°
63°
13
77°
61°
14
77°
64°
15
72°
59°
16
70°
59°
17
70°
63°
18
72°
63°
19
70°
59°
20
68°
57°
21
64°
50°
22
68°
53°
23
71°
56°
24
70°
59°
25
71°
60°
26
70°
60°
27
67°
57°
28
67°
59°
29
66°
59°
30
67°
58°
31
66°
56°
1
67°
57°
2
67°
55°
3
66°
56°
4
67°
59°
5
67°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St Ervan
St Ervan's August 2026 forecast shows daily high temperatures ranging from 66° to 71°, with overnight lows between 53° and 60°. The average high for August is 68° 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 St Ervan. See also: September | October | November.