S
M
T
W
T
F
S
30
76°
58°
31
76°
60°
1
81°
61°
2
81°
58°
3
80°
54°
4
80°
59°
5
79°
54°
6
79°
53°
7
73°
57°
8
72°
58°
9
73°
52°
10
78°
50°
11
73°
57°
12
74°
52°
13
78°
53°
14
73°
52°
15
71°
56°
16
71°
49°
17
76°
48°
18
Hist. Avg.
73°
50°
19
Hist. Avg.
72°
50°
20
Hist. Avg.
72°
50°
21
Hist. Avg.
72°
49°
22
Hist. Avg.
71°
49°
23
Hist. Avg.
71°
48°
24
Hist. Avg.
71°
48°
25
Hist. Avg.
70°
48°
26
Hist. Avg.
70°
47°
27
Hist. Avg.
70°
47°
28
Hist. Avg.
69°
46°
29
Hist. Avg.
69°
46°
30
Hist. Avg.
68°
45°
1
Hist. Avg.
68°
45°
2
Hist. Avg.
68°
45°
3
Hist. Avg.
67°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Attleboro
Attleboro's September 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 48° and 61°. The average high for September is 76° 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 September weather will actually feel in Attleboro. See also: October | November | December.
