S
M
T
W
T
F
S
30
78°
57°
31
79°
61°
1
78°
63°
2
83°
56°
3
78°
52°
4
76°
54°
5
75°
52°
6
76°
56°
7
81°
58°
8
83°
61°
9
84°
60°
10
83°
53°
11
76°
59°
12
76°
55°
13
78°
51°
14
75°
51°
15
72°
50°
16
73°
49°
17
75°
57°
18
78°
47°
19
73°
50°
20
73°
47°
21
75°
50°
22
73°
55°
23
78°
56°
24
80°
55°
25
75°
56°
26
78°
55°
27
78°
55°
28
80°
52°
29
77°
53°
30
76°
55°
1
78°
52°
2
78°
44°
3
75°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lisle Township
Lisle Township's September 2026 forecast shows daily high temperatures ranging from 72° to 84°, with overnight lows between 42° and 63°. The average high for September is 77° with an average low of 54°. 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 Lisle Township. See also: October | November | December.
