Monthly outlook for Lisle, IL: average high 63°, average low 49.8°. That is 4.8° above the climate normal for October. Precipitation is expected on 5 days (about 2.4 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 25 October (71.6°), the coolest 8 November (37.5°).
63°/49.8°
Average high / low
+4.8°
Above normal
5 / 4
Wet days / normal
2.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
67.8°
55.7°
+6.7°
4 November – 13 November
54.9°
50.4°
+2.5°
14 November – 23 November
at normal
46.5°
—
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).
Mon, 2667° / 49°0
67 °
Lisle, Monday, 26 October
Overcast. High 67°, low 49°.
Pressure30.33 inHg
Wind6 mph NE
Humidity76%
Visibility6.2 mi
Dew point56°
Tue, 2768° / 50°0.01
68 °
Lisle, Tuesday, 27 October
Light rain. High 68°, low 50°.
Pressure30.24 inHg
Wind5.1 mph SE
Humidity74%
Visibility6.2 mi
Dew point55°
Wed, 2870° / 53°0
70 °
Lisle, Wednesday, 28 October
Clear. High 70°, low 53°.
Pressure30.18 inHg
Wind7.6 mph S
Humidity65%
Visibility6.2 mi
Dew point55°
Thu, 2970° / 56°0
70 °
Lisle, Thursday, 29 October
Partly cloudy. High 70°, low 56°.
Pressure30.09 inHg
Wind10.2 mph S
Humidity64%
Visibility—
Dew point55°
Fri, 3069° / 53°0.06
69 °
Lisle, Friday, 30 October
Light rain. High 69°, low 53°.
Pressure30.15 inHg
Wind7.1 mph S
Humidity77%
Visibility—
Dew point58°
Sat, 3170° / 59°0.01
70 °
Lisle, Saturday, 31 October
Light rain. High 70°, low 59°.
Pressure30.12 inHg
Wind9.3 mph S
Humidity45%
Visibility—
Dew point46°
Sun, 0162° / 59°0.19
62 °
Lisle, Sunday, 1 November
Light rain. High 62°, low 59°.
Pressure30.06 inHg
Wind11.3 mph S
Humidity93%
Visibility—
Dew point57°
Mon, 0266° / 58°0.86
66 °
Lisle, Monday, 2 November
Heavy rain. High 66°, low 58°.
Pressure29.80 inHg
Wind15.5 mph S
Humidity87%
Visibility—
Dew point60°
Tue, 0363° / 47°1.04
63 °
Lisle, Tuesday, 3 November
Heavy rain. High 63°, low 47°.
Pressure29.65 inHg
Wind17.2 mph SW
Humidity77%
Visibility—
Dew point50°
Wed, 0451° / 46°0
51 °
Lisle, Wednesday, 4 November
Overcast. High 51°, low 46°.
Pressure29.80 inHg
Wind15.1 mph W
Humidity72%
Visibility—
Dew point41°
Thu, 0555° / 44°0
55 °
Lisle, Thursday, 5 November
Overcast. High 55°, low 44°.
Pressure29.94 inHg
Wind11.8 mph W
Humidity53%
Visibility—
Dew point36°
Fri, 0658° / 45°0
58 °
Lisle, Friday, 6 November
Overcast. High 58°, low 45°.
Pressure29.83 inHg
Wind8.9 mph S
Humidity56%
Visibility—
Dew point40°
Sat, 0755° / 41°0
55 °
Lisle, Saturday, 7 November
Overcast. High 55°, low 41°.
Pressure29.68 inHg
Wind14 mph NW
Humidity47%
Visibility—
Dew point29°
Sun, 0853° / 38°0
53 °
Lisle, Sunday, 8 November
Mostly clear. High 53°, low 38°.
Pressure29.97 inHg
Wind8.2 mph E
Humidity51%
Visibility—
Dew point31°
Mon, 0958° / 47°0.27
58 °
Lisle, Monday, 9 November
Rain. High 58°, low 47°.
Pressure29.65 inHg
Wind18.2 mph SW
Humidity84%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1050° / 37°0.11
50 °
Lisle, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation37%
Record high72° (2020)
Record low17° (2018)
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)
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.