S
M
T
W
T
F
S
26
74°
63°
27
76°
60°
28
77°
64°
29
72°
68°
30
69°
62°
31
76°
60°
1
77°
66°
2
82°
69°
3
79°
68°
4
82°
54°
5
81°
50°
6
82°
72°
7
87°
73°
8
83°
71°
9
86°
65°
10
81°
57°
11
82°
65°
12
82°
62°
13
78°
64°
14
80°
58°
15
77°
54°
16
77°
49°
17
71°
63°
18
80°
61°
19
81°
60°
20
83°
58°
21
70°
67°
22
72°
67°
23
78°
67°
24
80°
63°
25
76°
59°
26
78°
54°
27
80°
54°
28
81°
62°
29
76°
55°
30
79°
49°
31
N/A
1
70°
62°
2
73°
64°
3
74°
65°
4
79°
61°
5
72°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Edgartown
Edgartown's August 2026 forecast shows daily high temperatures ranging from 70° to 79°, with overnight lows between 60° and 65°. The average high for August is 74° with an average low of 62°. 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 Edgartown. See also: September | October | November.
