S
M
T
W
T
F
S
30
83°
54°
31
77°
62°
1
70°
57°
2
75°
56°
3
81°
61°
4
85°
60°
5
74°
57°
6
69°
52°
7
79°
47°
8
81°
52°
9
79°
57°
10
85°
65°
11
77°
50°
12
75°
45°
13
71°
54°
14
75°
48°
15
70°
45°
16
73°
46°
17
79°
60°
18
80°
58°
19
66°
52°
20
64°
52°
21
65°
49°
22
66°
48°
23
66°
48°
24
65°
51°
25
62°
49°
26
60°
54°
27
67°
60°
28
66°
57°
29
65°
55°
30
66°
55°
1
76°
55°
2
79°
64°
3
69°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fall River
Fall River's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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. See also: October | November | December.
