Weather on October 31
Naperville, IL
55 Years of Data
Avg High
59°F
Avg Low
39°F
Warmest
2024
70°F avg
Coldest
2023
33°F avg
About This Date
October 31st in Naperville, IL typically brings cool fall weather, with average highs around 59°F and lows near 39°F. Over 55 years of records, the warmest October 31st was in 2024 (70°F average), while the coldest was 2023 (33°F) — a 37°F range across recorded history. Precipitation has occurred on 40% of recorded October 31st dates, with snow falling 2% of the time. The last decade has been 7.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 7.9°F cooler on this date compared to 20-30 years ago.
Planning for October 31st in Naperville, IL? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Cooling Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 36° | 47° | — | — |
| 2024warmest | 79° | 61° | 70° | 0.05" | — |
| 2023coldest | 41° | 24° | 33° | — | — |
| 2022 | 63° | 39° | 51° | 0.38" | — |
| 2021 | 61° | 38° | 49° | — | — |
| 2020 | 44° | 23° | 34° | — | — |
| 2019 | 39° | 31° | 35° | 1.3" | 0.3" |
| 2018 | 67° | 47° | 57° | 1.52" | — |
| 2017 | 49° | 32° | 40° | — | — |
| 2016 | 56° | 35° | 45° | 0.05" | — |
| 2015 | 46° | 31° | 38° | 0.13" | — |
| 2014 | 53° | 31° | 42° | 0.08" | — |
| 2013 | 63° | 48° | 55° | 4.65" | — |
| 2012 | 47° | 33° | 40° | — | — |
| 2011 | 56° | 31° | 43° | 0.53" | — |
| 2010 | 65° | 33° | 49° | — | — |
| 2009 | 47° | 28° | 37° | — | — |
| 2008 | 67° | 35° | 51° | — | — |
| 2007 | 67° | 43° | 55° | — | — |
| 2006 | 69° | 36° | 52° | — | — |
| 2005 | 64° | 52° | 58° | — | — |
| 2004 | 58° | 44° | 51° | 0.03" | — |
| 2003 | 66° | 47° | 56° | — | — |
| 2002 | 51° | 35° | 43° | — | — |
| 2001 | 70° | 49° | 59° | 0.05" | — |
| 2000 | 75° | 49° | 62° | — | — |
| 1999 | 74° | 46° | 60° | 0.03" | — |
| 1998 | 61° | 52° | 56° | — | — |
| 1997 | 67° | 53° | 60° | — | — |
| 1996 | 45° | 25° | 35° | — | — |
| 1995 | 45° | 39° | 42° | 0.91" | — |
| 1994 | 55° | 42° | 49° | 0.76" | — |
| 1993 | 40° | 30° | 35° | — | — |
| 1992 | 50° | 37° | 44° | — | — |
| 1991 | 50° | 39° | 45° | 0.38" | — |
| 1990 | 75° | 40° | 57° | — | — |
| 1989 | 74° | 39° | 56° | 0.46" | — |
| 1988 | 51° | 21° | 36° | — | — |
| 1987 | 62° | 44° | 53° | — | — |
| 1986 | 68° | 44° | 56° | — | — |
| 1985 | 54° | 42° | 48° | — | — |
| 1984 | — | 35° | — | 0.05" | — |
| 1983 | 54° | 39° | 46° | 0.13" | — |
| 1982 | 68° | 53° | 61° | 0.66" | — |
| 1981 | 70° | 53° | 61° | — | — |
| 1980 | 61° | 28° | 44° | — | — |
| 1979 | 71° | 52° | 61° | — | — |
| 1978 | 57° | 37° | 47° | — | — |
| 1977 | 62° | 40° | 51° | — | — |
| 1976 | 51° | 36° | 43° | 0.89" | — |
| 1975 | 60° | 39° | 50° | — | — |
| 1974 | 76° | 62° | 69° | — | — |
| 1973 | 53° | 37° | 45° | 1.6" | — |
| 1972 | 48° | 41° | 45° | 0.08" | — |
| 1971 | 76° | 35° | 55° | — | — |
55 years of data from WHEATON 3 SE