S
M
T
W
T
F
S
30
75°
50°
31
74°
44°
1
68°
44°
2
66°
46°
3
66°
44°
4
67°
44°
5
66°
43°
6
65°
43°
7
66°
44°
8
67°
46°
9
66°
47°
10
63°
43°
11
65°
44°
12
68°
43°
13
66°
46°
14
67°
47°
15
63°
42°
16
63°
42°
17
60°
41°
18
62°
44°
19
67°
47°
20
Hist. Avg.
72°
45°
21
Hist. Avg.
71°
45°
22
Hist. Avg.
71°
45°
23
Hist. Avg.
71°
44°
24
Hist. Avg.
70°
44°
25
Hist. Avg.
70°
43°
26
Hist. Avg.
69°
43°
27
Hist. Avg.
69°
42°
28
Hist. Avg.
69°
42°
29
Hist. Avg.
68°
41°
30
Hist. Avg.
68°
41°
1
Hist. Avg.
67°
41°
2
Hist. Avg.
67°
40°
3
Hist. Avg.
66°
40°
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 60° to 75°, with overnight lows between 41° and 50°. The average high for September is 66° with an average low of 44°. 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.
