S
M
T
W
T
F
S
30
87°
60°
31
81°
66°
1
86°
66°
2
80°
58°
3
81°
62°
4
79°
67°
5
86°
66°
6
87°
65°
7
88°
66°
8
87°
64°
9
84°
65°
10
80°
64°
11
84°
58°
12
87°
64°
13
85°
62°
14
86°
61°
15
Hist. Avg.
79°
57°
16
Hist. Avg.
79°
56°
17
Hist. Avg.
78°
56°
18
Hist. Avg.
78°
55°
19
Hist. Avg.
78°
55°
20
Hist. Avg.
77°
54°
21
Hist. Avg.
77°
54°
22
Hist. Avg.
76°
53°
23
Hist. Avg.
76°
53°
24
Hist. Avg.
76°
53°
25
Hist. Avg.
75°
52°
26
Hist. Avg.
75°
52°
27
Hist. Avg.
74°
51°
28
Hist. Avg.
74°
51°
29
Hist. Avg.
74°
50°
30
Hist. Avg.
73°
50°
1
Hist. Avg.
73°
50°
2
Hist. Avg.
72°
49°
3
Hist. Avg.
72°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lisle
Lisle's September 2026 forecast shows daily high temperatures ranging from 79° to 88°, with overnight lows between 58° and 67°. The average high for September is 84° with an average low of 63°. 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. See also: October | November | December.
