S
M
T
W
T
F
S
30
78°
58°
31
82°
60°
1
82°
52°
2
81°
51°
3
74°
53°
4
76°
54°
5
78°
60°
6
80°
55°
7
81°
51°
8
73°
55°
9
73°
58°
10
74°
58°
11
78°
57°
12
76°
56°
13
72°
56°
14
70°
50°
15
72°
49°
16
70°
48°
17
70°
52°
18
71°
51°
19
75°
53°
20
69°
55°
21
74°
53°
22
73°
45°
23
69°
51°
24
67°
54°
25
72°
48°
26
72°
44°
27
Hist. Avg.
68°
47°
28
Hist. Avg.
67°
47°
29
Hist. Avg.
67°
46°
30
Hist. Avg.
66°
46°
1
Hist. Avg.
66°
46°
2
Hist. Avg.
66°
45°
3
Hist. Avg.
65°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Marlboro
Marlboro's September 2026 forecast shows daily high temperatures ranging from 67° to 82°, with overnight lows between 44° and 60°. The average high for September is 74° with an average low of 53°. 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 Marlboro. See also: October | November | December.
