Weather on October 3
Naperville, IL
55 Years of Data
Avg High
71°F
Avg Low
48°F
Warmest
2005
78°F avg
Coldest
1981
45°F avg
About This Date
October 3rd in Naperville, IL typically brings pleasant fall weather, with average highs around 71°F and lows near 48°F. Over 55 years of records, the warmest October 3rd was in 2005 (78°F average), while the coldest was 1981 (45°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 36% of October 3rd dates historically, with the wettest October 3rd recording 9.14" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for October 3rd in Naperville, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 52° | 68° | — | — |
| 2024 | 70° | 38° | 54° | — | — |
| 2023 | 83° | 53° | 68° | — | — |
| 2022 | 68° | 37° | 53° | — | — |
| 2021 | 79° | 63° | 71° | 0.89" | — |
| 2020 | 56° | 38° | 47° | — | — |
| 2019 | 61° | 58° | 59° | 3.53" | — |
| 2018 | 65° | 56° | 60° | — | — |
| 2017 | 83° | 63° | 73° | — | — |
| 2016 | 68° | 56° | 62° | 0.23" | — |
| 2015 | 62° | 42° | 52° | — | — |
| 2014 | 72° | 55° | 63° | 1.93" | — |
| 2013 | 78° | 55° | 67° | — | — |
| 2012 | 70° | 49° | 59° | — | — |
| 2011 | 66° | 34° | 50° | — | — |
| 2010 | 56° | 40° | 48° | 1.27" | — |
| 2009 | 59° | 46° | 53° | 0.33" | — |
| 2008 | 62° | 40° | 51° | 0.03" | — |
| 2007 | 80° | 54° | 67° | 0.69" | — |
| 2006 | 82° | 50° | 66° | 9.14" | — |
| 2005warmest | 86° | 69° | 78° | 1.27" | — |
| 2004 | 74° | 32° | 53° | — | — |
| 2003 | 55° | 41° | 48° | — | — |
| 2002 | 69° | 58° | 63° | — | — |
| 2001 | 84° | 59° | 72° | — | — |
| 2000 | 73° | 46° | 60° | — | — |
| 1999 | 56° | 35° | 45° | 0.15" | — |
| 1998 | 60° | 47° | 53° | 1.6" | — |
| 1997 | 89° | 59° | 74° | — | — |
| 1996 | 64° | 36° | 50° | — | — |
| 1995 | 81° | 55° | 68° | 0.13" | — |
| 1994 | 85° | 47° | 66° | — | — |
| 1993 | 71° | 36° | 53° | — | — |
| 1992 | 84° | 54° | 69° | — | — |
| 1991 | 70° | 59° | 64° | 1.09" | — |
| 1990 | 81° | 60° | 70° | 0.03" | — |
| 1989 | 60° | 38° | 49° | — | — |
| 1988 | 68° | 40° | 54° | — | — |
| 1987 | 57° | 35° | 46° | — | — |
| 1986 | 73° | 63° | 68° | 4.01" | — |
| 1985 | 69° | 34° | 51° | — | — |
| 1984 | — | 45° | — | — | — |
| 1983 | 85° | 50° | 67° | — | — |
| 1982 | 81° | 49° | 65° | — | — |
| 1981coldest | 61° | 30° | 45° | — | — |
| 1980 | 63° | — | — | — | — |
| 1979 | 61° | 44° | 52° | 0.03" | — |
| 1978 | 67° | 49° | 58° | 0.69" | — |
| 1977 | 65° | 37° | 51° | — | — |
| 1976 | 83° | 50° | 66° | — | — |
| 1975 | 71° | 33° | 52° | — | — |
| 1974 | 61° | — | — | — | — |
| 1973 | 74° | 57° | 65° | 0.05" | — |
| 1972 | 75° | 55° | 65° | — | — |
| 1971 | 85° | 62° | 73° | 1.3" | — |
55 years of data from LISLE - MORTON ARBORETUM