S
M
T
W
T
F
S
26
72°
56°
27
73°
56°
28
73°
59°
29
70°
58°
30
68°
57°
31
69°
55°
1
68°
54°
2
69°
53°
3
70°
55°
4
72°
58°
5
73°
59°
6
72°
58°
7
69°
56°
8
70°
55°
9
71°
58°
10
72°
56°
11
73°
58°
12
73°
58°
13
74°
57°
14
73°
58°
15
72°
57°
16
73°
58°
17
72°
57°
18
72°
54°
19
70°
51°
20
67°
51°
21
67°
50°
22
68°
51°
23
67°
55°
24
67°
51°
25
68°
52°
26
66°
54°
27
66°
56°
28
67°
51°
29
66°
52°
30
67°
51°
31
66°
50°
1
67°
51°
2
68°
53°
3
69°
55°
4
69°
50°
5
68°
49°
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 66° to 74°, with overnight lows between 49° and 59°. The average high for August is 70° with an average low of 55°. 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.
