S
M
T
W
T
F
S
26
78°
61°
27
80°
68°
28
77°
69°
29
79°
65°
30
76°
67°
31
82°
66°
1
82°
71°
2
82°
73°
3
83°
69°
4
85°
68°
5
84°
71°
6
83°
72°
7
85°
70°
8
86°
71°
9
85°
68°
10
81°
71°
11
83°
71°
12
81°
70°
13
80°
71°
14
84°
70°
15
82°
69°
16
80°
69°
17
79°
68°
18
78°
69°
19
81°
70°
20
80°
70°
21
79°
69°
22
78°
69°
23
80°
70°
24
83°
63°
25
76°
62°
26
76°
69°
27
80°
70°
28
83°
70°
29
83°
69°
30
82°
66°
31
77°
61°
1
75°
61°
2
74°
60°
3
74°
60°
4
75°
62°
5
75°
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 74° to 86°, with overnight lows between 60° and 73°. The average high for August is 80° with an average low of 68°. 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.
