S
M
T
W
T
F
S
30
86°
72°
31
92°
69°
1
96°
72°
2
97°
75°
3
97°
76°
4
97°
76°
5
99°
73°
6
87°
71°
7
85°
71°
8
87°
64°
9
90°
64°
10
94°
71°
11
97°
74°
12
89°
71°
13
91°
73°
14
92°
70°
15
85°
73°
16
88°
66°
17
91°
65°
18
96°
72°
19
90°
71°
20
90°
71°
21
92°
70°
22
87°
66°
23
66°
60°
24
62°
56°
25
75°
50°
26
80°
47°
27
81°
50°
28
81°
58°
29
81°
58°
30
86°
59°
1
87°
63°
2
87°
65°
3
72°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in South End
South End's September 2026 forecast shows daily high temperatures ranging from 72° to 87°, with overnight lows between 58° and 65°. The average high for September is 82° with an average low of 61°. 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 South End. See also: October | November | December.
