S
M
T
W
T
F
S
26
77°
60°
27
76°
57°
28
78°
69°
29
74°
66°
30
75°
65°
31
80°
65°
1
80°
69°
2
79°
68°
3
81°
65°
4
82°
64°
5
81°
65°
6
81°
66°
7
80°
65°
8
81°
66°
9
80°
66°
10
81°
64°
11
81°
67°
12
77°
66°
13
78°
67°
14
80°
66°
15
79°
66°
16
77°
65°
17
76°
65°
18
76°
64°
19
78°
66°
20
77°
66°
21
76°
65°
22
77°
65°
23
76°
66°
24
79°
59°
25
74°
60°
26
74°
65°
27
76°
66°
28
80°
66°
29
80°
65°
30
79°
63°
31
75°
57°
1
73°
58°
2
72°
57°
3
71°
57°
4
72°
60°
5
73°
63°
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 71° to 82°, with overnight lows between 57° and 69°. The average high for August is 77° with an average low of 64°. 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.
