S
M
T
W
T
F
S
26
79°
63°
27
81°
65°
28
81°
63°
29
82°
65°
30
83°
67°
31
82°
60°
1
82°
66°
2
84°
67°
3
83°
61°
4
85°
60°
5
80°
61°
6
80°
60°
7
83°
60°
8
79°
61°
9
80°
66°
10
84°
65°
11
82°
63°
12
84°
65°
13
84°
66°
14
83°
66°
15
81°
65°
16
84°
59°
17
84°
58°
18
77°
59°
19
77°
60°
20
76°
60°
21
78°
57°
22
77°
63°
23
78°
64°
24
82°
65°
25
84°
64°
26
84°
55°
27
81°
56°
28
74°
55°
29
74°
57°
30
75°
61°
31
76°
63°
1
81°
63°
2
81°
61°
3
80°
58°
4
80°
62°
5
79°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Marlborough
Marlborough's August 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 55° and 67°. The average high for August is 81° 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 Marlborough. See also: September | October | November.
