S
M
T
W
T
F
S
26
78°
67°
27
79°
69°
28
80°
68°
29
80°
69°
30
81°
70°
31
83°
70°
1
82°
69°
2
82°
68°
3
78°
66°
4
77°
67°
5
77°
68°
6
78°
68°
7
79°
67°
8
78°
68°
9
82°
68°
10
82°
67°
11
80°
68°
12
81°
67°
13
80°
68°
14
82°
65°
15
82°
67°
16
81°
67°
17
78°
66°
18
82°
68°
19
81°
67°
20
81°
64°
21
80°
59°
22
76°
60°
23
75°
59°
24
76°
60°
25
75°
59°
26
78°
61°
27
75°
58°
28
77°
58°
29
74°
57°
30
74°
57°
31
75°
56°
1
72°
55°
2
72°
57°
3
73°
59°
4
72°
58°
5
74°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in West Dennis
West Dennis's August 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 55° and 70°. The average high for August is 78° 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 West Dennis. See also: September | October | November.
