S
M
T
W
T
F
S
26
73°
48°
27
78°
49°
28
79°
61°
29
70°
64°
30
73°
62°
31
76°
61°
1
83°
64°
2
85°
71°
3
79°
66°
4
85°
61°
5
87°
61°
6
87°
69°
7
90°
72°
8
89°
71°
9
88°
68°
10
81°
71°
11
84°
67°
12
79°
67°
13
79°
61°
14
79°
60°
15
76°
59°
16
74°
58°
17
76°
57°
18
75°
59°
19
74°
57°
20
75°
59°
21
72°
58°
22
74°
61°
23
79°
63°
24
73°
58°
25
74°
61°
26
76°
62°
27
80°
63°
28
80°
61°
29
77°
57°
30
73°
55°
31
72°
54°
1
72°
56°
2
73°
58°
3
72°
57°
4
73°
59°
5
72°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Marblehead
Marblehead's August 2026 forecast shows daily high temperatures ranging from 72° to 89°, with overnight lows between 54° and 71°. The average high for August is 77° with an average low of 61°. 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 Marblehead. See also: September | October | November.