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Lisle, IL

76°F
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Lisle

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76°
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Lisle, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities
Heat Advisory

September

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
30
81°
68°
31
87°
70°
1
93°
73°
2
Mostly sunny and hot
93°
73°
3
Hot and humid with a t-storm
92°
71°
4
A thunderstorm, hot and humid
91°
72°
5
Chance for a thunderstorm
87°
69°
6
Chance for a thunderstorm
86°
63°
7
Mostly cloudy and humid
83°
63°
8
Humid with some sun
83°
64°
9
Humid with some sun
84°
63°
10
Sunny and less humid
81°
62°
11
A little afternoon rain
81°
61°
12
An afternoon t-storm or two
80°
59°
13
A couple of thunderstorms
78°
57°
14
Some sun with a shower
79°
58°
15
Clouds and sun
78°
54°
16
Partly sunny, warm and humid
82°
60°
17
Plenty of sun
81°
59°
18
Clouds and sun
74°
58°
19
Cloudy, showers around; humid
78°
59°
20
Mostly cloudy and humid
79°
58°
21
Cloudy, thunderstorms; humid
77°
58°
22
Sunny and less humid
77°
56°
23
Plenty of sunshine
74°
56°
24
Mostly cloudy
75°
54°
25
Cloudy, warm and humid
78°
56°
26
Decreasing clouds; less humid
78°
51°
27
Not as warm
68°
46°
28
Mostly sunny
66°
44°
29
Mostly cloudy
67°
47°
30
Mostly sunny
66°
44°
1
Mostly sunny
65°
46°
2
Mostly cloudy, rain ending
69°
53°
3
More sun than clouds
68°
52°

Temperature Graph

°F
100° 88° 76° 64° 52° Sep
Today 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

September Weather in Lisle

Lisle's September 2026 forecast shows daily high temperatures ranging from 65° to 93°, with overnight lows between 44° and 73°. The average high for September is 78° with an average low of 58°. 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.

Further Ahead

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November 2026

December 2026

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World North America United States Illinois Lisle

Weather Near Lisle:

  • Chicago, IL
  • Joliet, IL
  • Naperville, IL
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