S
M
T
W
T
F
S
26
83°
67°
27
83°
68°
28
84°
68°
29
84°
65°
30
83°
64°
31
78°
61°
1
78°
62°
2
79°
63°
3
80°
62°
4
81°
64°
5
81°
67°
6
82°
65°
7
81°
67°
8
83°
68°
9
80°
68°
10
81°
67°
11
79°
67°
12
83°
66°
13
84°
67°
14
83°
67°
15
84°
63°
16
82°
66°
17
78°
60°
18
80°
61°
19
78°
60°
20
77°
64°
21
79°
66°
22
82°
68°
23
83°
67°
24
82°
64°
25
82°
62°
26
83°
66°
27
77°
60°
28
Hist. Avg.
77°
57°
29
Hist. Avg.
77°
57°
30
Hist. Avg.
77°
57°
31
Hist. Avg.
77°
56°
1
Hist. Avg.
77°
56°
2
Hist. Avg.
76°
56°
3
Hist. Avg.
76°
56°
4
Hist. Avg.
76°
55°
5
Hist. Avg.
76°
55°
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 77° to 84°, with overnight lows between 60° and 68°. The average high for August is 81° with an average low of 65°. 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.
