S
M
T
W
T
F
S
30
85°
65°
31
87°
68°
1
88°
65°
2
83°
65°
3
82°
61°
4
82°
61°
5
83°
60°
6
79°
58°
7
77°
57°
8
78°
58°
9
75°
52°
10
74°
54°
11
74°
54°
12
75°
54°
13
77°
53°
14
79°
55°
15
80°
56°
16
80°
55°
17
78°
56°
18
79°
56°
19
75°
55°
20
77°
55°
21
78°
56°
22
77°
55°
23
78°
54°
24
76°
52°
25
69°
49°
26
70°
51°
27
75°
52°
28
75°
52°
29
76°
51°
30
76°
51°
1
75°
50°
2
75°
52°
3
74°
52°
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 69° to 88°, with overnight lows between 49° and 68°. The average high for September is 78° with an average low of 56°. 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.
