S
M
T
W
T
F
S
30
78°
62°
31
80°
63°
1
83°
64°
2
83°
63°
3
82°
62°
4
82°
62°
5
80°
61°
6
81°
62°
7
82°
63°
8
83°
62°
9
83°
61°
10
82°
62°
11
83°
62°
12
82°
61°
13
82°
61°
14
81°
60°
15
81°
59°
16
80°
59°
17
80°
58°
18
74°
55°
19
74°
56°
20
79°
58°
21
79°
54°
22
69°
48°
23
68°
52°
24
77°
57°
25
69°
55°
26
77°
54°
27
77°
53°
28
68°
56°
29
74°
47°
30
73°
43°
1
66°
41°
2
63°
42°
3
64°
46°
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 83°, with overnight lows between 41° and 64°. The average high for September is 77° with an average low of 57°. 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.
