S
M
T
W
T
F
S
30
81°
69°
31
91°
72°
1
94°
77°
2
96°
78°
3
92°
79°
4
93°
78°
5
N/A
6
76°
66°
7
78°
65°
8
88°
74°
9
87°
65°
10
76°
65°
11
76°
66°
12
81°
71°
13
78°
67°
14
74°
61°
15
78°
68°
16
77°
64°
17
76°
65°
18
73°
59°
19
74°
65°
20
75°
64°
21
72°
64°
22
68°
63°
23
70°
63°
24
75°
62°
25
76°
63°
26
75°
63°
27
74°
62°
28
76°
64°
29
75°
64°
30
75°
63°
1
73°
57°
2
68°
52°
3
61°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lower West Side
Lower West Side's September 2026 forecast shows daily high temperatures ranging from 61° to 88°, with overnight lows between 48° and 74°. The average high for September is 75° with an average low of 63°. 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 Lower West Side. See also: October | November | December.
