S
M
T
W
T
F
S
30
81°
53°
31
82°
56°
1
81°
53°
2
82°
55°
3
80°
55°
4
81°
54°
5
80°
54°
6
79°
53°
7
78°
54°
8
78°
53°
9
77°
52°
10
78°
53°
11
79°
52°
12
79°
52°
13
78°
51°
14
78°
52°
15
76°
52°
16
77°
50°
17
76°
50°
18
70°
48°
19
71°
39°
20
66°
41°
21
67°
48°
22
68°
40°
23
67°
40°
24
65°
41°
25
67°
46°
26
71°
46°
27
66°
43°
28
64°
39°
29
64°
38°
30
65°
38°
1
68°
42°
2
68°
46°
3
65°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Marlborough Town
Marlborough Town's September 2026 forecast shows daily high temperatures ranging from 64° to 82°, with overnight lows between 38° and 56°. The average high for September is 73° with an average low of 48°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Marlborough Town. See also: October | November | December.