Weather on October 23
Naperville, IL
55 Years of Data
Avg High
62°F
Avg Low
40°F
Warmest
1991
69°F avg
Coldest
1981
32°F avg
About This Date
October 23rd in Naperville, IL typically brings mild fall weather, with average highs around 62°F and lows near 40°F. Over 55 years of records, the warmest October 23rd was in 1991 (69°F average), while the coldest was 1981 (32°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 33% of October 23rd dates historically, with the wettest October 23rd recording 2.69" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for October 23rd in Naperville, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 50° | 36° | 43° | — | — |
| 2024 | 73° | 47° | 60° | 0.03" | — |
| 2023 | 59° | 34° | 46° | — | — |
| 2022 | 78° | 54° | 66° | — | — |
| 2021 | 46° | 31° | 38° | — | — |
| 2020 | 78° | 47° | 62° | 0.05" | — |
| 2019 | 51° | 37° | 44° | 0.08" | — |
| 2018 | 65° | 33° | 49° | — | — |
| 2017 | 69° | 50° | 60° | 2.24" | — |
| 2016 | 62° | 33° | 48° | — | — |
| 2015 | 65° | 44° | 54° | — | — |
| 2014 | 58° | 31° | 44° | — | — |
| 2013 | 40° | 27° | 33° | 0.25" | — |
| 2012 | 64° | 52° | 58° | 0.86" | — |
| 2011 | 68° | 33° | 51° | — | — |
| 2010 | 66° | 28° | 47° | — | — |
| 2009 | 57° | 36° | 46° | 0.81" | — |
| 2008 | 58° | 32° | 45° | — | — |
| 2007 | 60° | 39° | 50° | 0.41" | — |
| 2006 | 42° | 34° | 38° | — | — |
| 2005 | 56° | 28° | 42° | — | — |
| 2004 | 76° | 56° | 66° | 1.4" | — |
| 2003 | 57° | 39° | 48° | — | — |
| 2002 | 51° | 39° | 45° | — | — |
| 2001 | 68° | 59° | 64° | 2.54" | — |
| 2000 | 73° | 56° | 64° | — | — |
| 1999 | 68° | 30° | 49° | — | — |
| 1998 | 65° | 31° | 48° | — | — |
| 1997 | 53° | 29° | 41° | — | — |
| 1996 | 63° | 37° | 50° | 1.12" | — |
| 1995 | 72° | 43° | 57° | — | — |
| 1994 | 73° | 43° | 58° | — | — |
| 1993 | 70° | 33° | 51° | — | — |
| 1992 | 77° | 56° | 66° | — | — |
| 1991warmest | 77° | 60° | 69° | — | — |
| 1990 | 62° | 29° | 45° | — | — |
| 1989 | 73° | 41° | 57° | — | — |
| 1988 | 53° | 34° | 43° | 0.91" | — |
| 1987 | 55° | 27° | 41° | — | — |
| 1986 | 72° | 54° | 63° | — | — |
| 1985 | 68° | 50° | 59° | — | — |
| 1984 | — | 30° | — | — | — |
| 1983 | 54° | 49° | 51° | 2.69" | — |
| 1982 | 57° | 24° | 41° | — | — |
| 1981coldest | 42° | 22° | 32° | — | — |
| 1980 | 64° | 42° | 53° | — | — |
| 1979 | 61° | 37° | 49° | 0.28" | — |
| 1978 | 54° | 34° | 44° | 1.22" | — |
| 1977 | 51° | 43° | 47° | 0.33" | — |
| 1976 | 47° | 27° | 37° | — | — |
| 1975 | 80° | 56° | 68° | — | — |
| 1974 | 69° | 52° | 60° | — | — |
| 1973 | 76° | 39° | 57° | — | — |
| 1972 | 59° | 42° | 51° | 0.33" | — |
| 1971 | 67° | 53° | 60° | 0.03" | — |
55 years of data from LISLE - MORTON ARBORETUM