S
M
T
W
T
F
S
30
83°
70°
31
89°
70°
1
96°
73°
2
95°
77°
3
89°
73°
4
89°
72°
5
82°
69°
6
83°
68°
7
82°
66°
8
80°
64°
9
87°
66°
10
80°
63°
11
77°
62°
12
77°
60°
13
75°
60°
14
76°
59°
15
75°
56°
16
79°
62°
17
78°
61°
18
71°
60°
19
75°
61°
20
76°
60°
21
75°
60°
22
74°
58°
23
71°
58°
24
73°
56°
25
76°
58°
26
76°
53°
27
65°
49°
28
64°
46°
29
64°
49°
30
64°
46°
1
63°
48°
2
66°
55°
3
65°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Niles
Niles's September 2026 forecast shows daily high temperatures ranging from 63° to 95°, with overnight lows between 46° and 77°. The average high for September is 76° with an average low of 60°. 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 Niles. See also: October | November | December.
