Monthly outlook for Lisle, IL: average high 57°, average low 45.2°. That is 1.7° above the climate normal for October. Precipitation is expected on 8 days (about 3.5 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 28 October (74.4°), the coolest 7 November (28.9°).
57°/45.2°
Average high / low
+1.7°
Above normal
8 / 4
Wet days / normal
3.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
64.9°
55.3°
+5.4°
5 November – 14 November
43.7°
49.9°
-3.4°
15 November – 24 November
at normal
46°
—
October records over 66 years
87.4°3 October 2025All-time high
21.9°24 October 1981All-time low
Climate normals and records are computed from the nearest reference point — Naperville (5 mi).
Tue, 2769° / 50°0
69 °
Lisle, Tuesday, 27 October
Overcast. High 69°, low 50°.
Pressure30.27 inHg
Wind4.1 mph SE
Humidity80%
Visibility6.2 mi
Dew point54°
Wed, 2874° / 50°0
74 °
Lisle, Wednesday, 28 October
Clear. High 74°, low 50°.
Pressure30.18 inHg
Wind5.8 mph S
Humidity66%
Visibility6.2 mi
Dew point54°
Thu, 2968° / 54°0.13
68 °
Lisle, Thursday, 29 October
Rain. High 68°, low 54°.
Pressure30.06 inHg
Wind8.1 mph SW
Humidity70%
Visibility6.2 mi
Dew point57°
Fri, 3064° / 45°0
64 °
Lisle, Friday, 30 October
Light rain. High 64°, low 45°.
Pressure30.27 inHg
Wind3 mph SE
Humidity69%
Visibility6.2 mi
Dew point50°
Sat, 3165° / 53°0.72
65 °
Lisle, Saturday, 31 October
Rain. High 65°, low 53°.
Pressure30.15 inHg
Wind6 mph S
Humidity84%
Visibility—
Dew point58°
Sun, 0162° / 53°0.11
62 °
Lisle, Sunday, 1 November
Light rain. High 62°, low 53°.
Pressure29.97 inHg
Wind5.9 mph E
Humidity85%
Visibility—
Dew point57°
Mon, 0260° / 53°0.02
60 °
Lisle, Monday, 2 November
Light rain. High 60°, low 53°.
Pressure29.85 inHg
Wind11 mph E
Humidity73%
Visibility—
Dew point51°
Tue, 0361° / 58°0.56
61 °
Lisle, Tuesday, 3 November
Rain. High 61°, low 58°.
Pressure29.85 inHg
Wind16.4 mph E
Humidity85%
Visibility—
Dew point56°
Wed, 0462° / 50°0.96
62 °
Lisle, Wednesday, 4 November
Rain. High 62°, low 50°.
Pressure29.53 inHg
Wind24.5 mph SE
Humidity88%
Visibility—
Dew point48°
Thu, 0549° / 35°0.1
49 °
Lisle, Thursday, 5 November
Snow. High 49°, low 35°.
Pressure29.35 inHg
Wind20.3 mph W
Humidity88%
Visibility—
Dew point41°
Fri, 0638° / 31°0.08
38 °
Lisle, Friday, 6 November
Light snow. High 38°, low 31°.
Pressure29.74 inHg
Wind18.4 mph W
Humidity83%
Visibility—
Dew point31°
Sat, 0739° / 29°0
39 °
Lisle, Saturday, 7 November
Mostly clear. High 39°, low 29°.
Pressure30.09 inHg
Wind12.2 mph NW
Humidity56%
Visibility—
Dew point23°
Sun, 0843° / 31°0.02
43 °
Lisle, Sunday, 8 November
Light rain. High 43°, low 31°.
Pressure30.12 inHg
Wind10.7 mph S
Humidity41%
Visibility—
Dew point18°
Mon, 0947° / 42°0.76
47 °
Lisle, Monday, 9 November
Rain. High 47°, low 42°.
Pressure29.62 inHg
Wind13.7 mph S
Humidity96%
Visibility—
Dew point43°
Tue, 1047° / 40°0
47 °
Lisle, Tuesday, 10 November
Overcast. High 47°, low 40°.
Pressure29.74 inHg
Wind11.2 mph NW
Humidity67%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1148° / 34°0.06
48 °
Lisle, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (1964)
Record low16° (2019)
Thu, 1246° / 33°0.06
46 °
Lisle, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation23%
Record high67° (1964)
Record low6° (2019)
Fri, 1347° / 33°0.05
47 °
Lisle, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.05 in
Chance of precipitation22%
Record high70° (1999)
Record low3° (2019)
Sat, 1448° / 33°0.07
48 °
Lisle, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.07 in
Chance of precipitation32%
Record high70° (1971)
Record low13° (1986)
Sun, 1547° / 34°0.09
47 °
Lisle, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.09 in
Chance of precipitation27%
Record high68° (2025)
Record low19° (1982)
Mon, 1647° / 33°0.05
47 °
Lisle, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.05 in
Chance of precipitation15%
Record high64° (1971)
Record low20° (1997)
Tue, 1748° / 34°0.09
48 °
Lisle, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.09 in
Chance of precipitation25%
Record high71° (2016)
Record low15° (2014)
Wed, 1848° / 35°0.13
48 °
Lisle, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.13 in
Chance of precipitation28%
Record high67° (1999)
Record low11° (2014)
Thu, 1947° / 34°0.07
47 °
Lisle, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation32%
Record high65° (1985)
Record low17° (2014)
Fri, 2046° / 33°0.08
46 °
Lisle, Friday, 20 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.08 in
Chance of precipitation32%
Record high63° (2003)
Record low14° (2022)
Sat, 2144° / 31°0.11
44 °
Lisle, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.11 in
Chance of precipitation25%
Record high67° (1990)
Record low9° (1964)
Sun, 2245° / 30°0.04
45 °
Lisle, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.04 in
Chance of precipitation22%
Record high68° (2010)
Record low3° (2015)
Mon, 2345° / 31°0.08
45 °
Lisle, Monday, 23 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.08 in
Chance of precipitation28%
Record high65° (2003)
Record low12° (1970)
Tue, 2443° / 29°0.07
43 °
Lisle, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.07 in
Chance of precipitation28%
Record high66° (1966)
Record low13° (1970)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Lisle, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Lisle, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.