S
M
T
W
T
F
S
30
84°
37°
31
84°
39°
1
85°
45°
2
90°
46°
3
89°
38°
4
81°
42°
5
82°
39°
6
85°
38°
7
82°
41°
8
81°
40°
9
85°
41°
10
87°
42°
11
87°
45°
12
88°
45°
13
91°
41°
14
89°
34°
15
80°
35°
16
79°
34°
17
79°
35°
18
80°
39°
19
85°
40°
20
88°
41°
21
88°
38°
22
84°
33°
23
77°
30°
24
76°
31°
25
76°
30°
26
74°
32°
27
75°
34°
28
76°
37°
29
77°
32°
30
79°
38°
1
Hist. Avg.
72°
41°
2
Hist. Avg.
72°
41°
3
Hist. Avg.
71°
41°
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 74° to 91°, with overnight lows between 30° and 46°. The average high for September is 83° with an average low of 38°. 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.
