S
M
T
W
T
F
S
26
79°
46°
27
85°
47°
28
84°
63°
29
71°
65°
30
76°
62°
31
82°
58°
1
87°
62°
2
86°
69°
3
79°
65°
4
85°
60°
5
88°
59°
6
91°
69°
7
91°
71°
8
90°
70°
9
89°
65°
10
85°
61°
11
86°
63°
12
85°
58°
13
85°
62°
14
82°
58°
15
81°
51°
16
83°
50°
17
75°
65°
18
82°
65°
19
83°
61°
20
85°
56°
21
79°
59°
22
68°
63°
23
79°
61°
24
81°
56°
25
81°
54°
26
80°
58°
27
79°
57°
28
78°
55°
29
77°
57°
30
79°
56°
31
78°
58°
1
77°
55°
2
76°
52°
3
75°
56°
4
77°
55°
5
73°
53°
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 68° to 85°, with overnight lows between 52° and 63°. The average high for August is 78° with an average low of 57°. 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.
