S
M
T
W
T
F
S
26
75°
58°
27
74°
58°
28
73°
57°
29
69°
54°
30
70°
58°
31
68°
59°
1
73°
58°
2
71°
58°
3
72°
57°
4
70°
58°
5
71°
58°
6
73°
59°
7
73°
58°
8
72°
59°
9
73°
59°
10
74°
58°
11
73°
59°
12
75°
59°
13
73°
57°
14
71°
58°
15
73°
57°
16
69°
57°
17
72°
56°
18
71°
57°
19
70°
55°
20
72°
54°
21
72°
56°
22
71°
56°
23
72°
55°
24
71°
56°
25
71°
55°
26
69°
54°
27
67°
51°
28
66°
55°
29
67°
54°
30
66°
51°
31
66°
54°
1
65°
55°
2
68°
53°
3
66°
51°
4
65°
53°
5
65°
55°
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 65° to 75°, with overnight lows between 51° and 59°. The average high for August is 70° with an average low of 56°. 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.
