S
M
T
W
T
F
S
30
70°
54°
31
69°
53°
1
68°
54°
2
72°
53°
3
70°
54°
4
71°
53°
5
67°
52°
6
66°
50°
7
67°
48°
8
67°
51°
9
70°
53°
10
69°
49°
11
66°
53°
12
67°
52°
13
66°
52°
14
65°
51°
15
68°
51°
16
68°
47°
17
67°
49°
18
Hist. Avg.
63°
48°
19
Hist. Avg.
63°
48°
20
Hist. Avg.
63°
48°
21
Hist. Avg.
63°
48°
22
Hist. Avg.
63°
48°
23
Hist. Avg.
62°
48°
24
Hist. Avg.
62°
47°
25
Hist. Avg.
62°
47°
26
Hist. Avg.
62°
47°
27
Hist. Avg.
62°
47°
28
Hist. Avg.
62°
47°
29
Hist. Avg.
61°
47°
30
Hist. Avg.
61°
46°
1
Hist. Avg.
61°
46°
2
Hist. Avg.
61°
46°
3
Hist. Avg.
61°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Attleborough
Attleborough's September 2026 forecast shows daily high temperatures ranging from 65° to 72°, with overnight lows between 47° and 54°. The average high for September is 68° with an average low of 52°. 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 Attleborough. See also: October | November | December.