S
M
T
W
T
F
S
26
76°
65°
27
74°
66°
28
74°
67°
29
75°
66°
30
74°
66°
31
74°
67°
1
75°
66°
2
74°
67°
3
75°
67°
4
76°
66°
5
76°
67°
6
74°
66°
7
74°
66°
8
75°
65°
9
74°
66°
10
74°
66°
11
75°
63°
12
73°
66°
13
74°
66°
14
75°
65°
15
73°
65°
16
73°
64°
17
74°
65°
18
73°
66°
19
73°
66°
20
76°
65°
21
76°
66°
22
77°
65°
23
74°
64°
24
79°
65°
25
78°
64°
26
77°
63°
27
79°
59°
28
72°
58°
29
70°
57°
30
70°
56°
31
69°
55°
1
69°
59°
2
70°
62°
3
70°
64°
4
77°
65°
5
78°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Nantucket Town
Nantucket Town's August 2026 forecast shows daily high temperatures ranging from 69° to 79°, with overnight lows between 55° and 67°. The average high for August is 74° 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 Nantucket Town. See also: September | October | November.
