S
M
T
W
T
F
S
26
81°
67°
27
87°
67°
28
85°
66°
29
81°
60°
30
84°
62°
31
85°
67°
1
83°
68°
2
81°
69°
3
83°
68°
4
85°
71°
5
88°
70°
6
88°
69°
7
85°
70°
8
86°
68°
9
86°
70°
10
87°
66°
11
83°
69°
12
84°
68°
13
84°
69°
14
81°
66°
15
83°
68°
16
83°
69°
17
81°
69°
18
82°
68°
19
83°
69°
20
83°
68°
21
82°
66°
22
82°
67°
23
87°
68°
24
88°
67°
25
84°
65°
26
87°
70°
27
89°
70°
28
89°
69°
29
87°
68°
30
84°
67°
31
79°
62°
1
78°
59°
2
78°
59°
3
80°
66°
4
84°
66°
5
83°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Devon
Devon's August 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 59° and 71°. The average high for August is 84° with an average low of 67°. 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 Devon. See also: September | October | November.
