S
M
T
W
T
F
S
30
76°
51°
31
75°
51°
1
75°
52°
2
77°
54°
3
76°
52°
4
78°
51°
5
77°
49°
6
76°
50°
7
74°
48°
8
76°
47°
9
74°
55°
10
74°
49°
11
73°
47°
12
73°
48°
13
74°
54°
14
78°
50°
15
78°
54°
16
79°
54°
17
80°
53°
18
80°
54°
19
79°
49°
20
77°
45°
21
69°
50°
22
70°
52°
23
73°
51°
24
75°
52°
25
76°
46°
26
74°
42°
27
71°
44°
28
66°
43°
29
66°
43°
30
65°
43°
1
65°
48°
2
Hist. Avg.
68°
47°
3
Hist. Avg.
67°
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 65° to 80°, with overnight lows between 42° and 55°. The average high for September is 74° with an average low of 49°. 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.
