S
M
T
W
T
F
S
30
84°
42°
31
82°
44°
1
67°
47°
2
53°
48°
3
56°
39°
4
64°
33°
5
71°
39°
6
68°
45°
7
75°
36°
8
83°
41°
9
90°
42°
10
85°
52°
11
86°
46°
12
79°
37°
13
71°
37°
14
81°
37°
15
83°
41°
16
84°
37°
17
87°
39°
18
86°
42°
19
85°
40°
20
83°
41°
21
82°
39°
22
83°
38°
23
82°
41°
24
80°
37°
25
73°
36°
26
74°
38°
27
72°
33°
28
72°
36°
29
73°
36°
30
76°
40°
1
81°
40°
2
81°
39°
3
80°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fall River Mills
Fall River Mills's September 2026 forecast shows daily high temperatures ranging from 71° to 87°, with overnight lows between 33° and 46°. The average high for September is 80° with an average low of 39°. 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 Fall River Mills. See also: October | November | December.
