S
M
T
W
T
F
S
26
81°
70°
27
81°
70°
28
80°
69°
29
81°
70°
30
79°
68°
31
75°
68°
1
75°
67°
2
76°
65°
3
76°
67°
4
77°
66°
5
75°
66°
6
75°
67°
7
76°
69°
8
75°
68°
9
76°
68°
10
80°
62°
11
78°
63°
12
80°
65°
13
76°
66°
14
79°
67°
15
81°
66°
16
82°
67°
17
81°
67°
18
81°
66°
19
80°
64°
20
79°
60°
21
74°
60°
22
74°
59°
23
75°
58°
24
74°
59°
25
76°
60°
26
79°
59°
27
79°
59°
28
76°
64°
29
75°
62°
30
76°
61°
31
78°
64°
1
78°
56°
2
79°
57°
3
71°
56°
4
72°
58°
5
74°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Dennis Port
Dennis Port's August 2026 forecast shows daily high temperatures ranging from 71° to 82°, with overnight lows between 56° and 70°. 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 Dennis Port. See also: September | October | November.
