S
M
T
W
T
F
S
30
87°
65°
31
85°
59°
1
83°
58°
2
80°
59°
3
80°
59°
4
81°
60°
5
80°
58°
6
79°
58°
7
79°
59°
8
80°
61°
9
79°
58°
10
78°
58°
11
79°
59°
12
80°
57°
13
79°
58°
14
78°
57°
15
77°
59°
16
78°
55°
17
77°
56°
18
76°
56°
19
79°
57°
20
Hist. Avg.
76°
55°
21
Hist. Avg.
76°
55°
22
Hist. Avg.
76°
54°
23
Hist. Avg.
75°
54°
24
Hist. Avg.
75°
54°
25
Hist. Avg.
74°
53°
26
Hist. Avg.
74°
53°
27
Hist. Avg.
74°
53°
28
Hist. Avg.
73°
52°
29
Hist. Avg.
73°
52°
30
Hist. Avg.
72°
52°
1
Hist. Avg.
72°
51°
2
Hist. Avg.
72°
51°
3
Hist. Avg.
71°
50°
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 76° to 87°, with overnight lows between 55° and 65°. The average high for September is 80° with an average low of 58°. 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.
