Weather on October 26
Naperville, IL
55 Years of Data
Avg High
59°F
Avg Low
38°F
Warmest
2000
68°F avg
Coldest
1979
36°F avg
About This Date
October 26th in Naperville, IL typically brings cool fall weather, with average highs around 59°F and lows near 38°F. Over 55 years of records, the warmest October 26th was in 2000 (68°F average), while the coldest was 1979 (36°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 31% of October 26th dates historically, with the wettest October 26th recording 2.18" of rain. The last decade has been 4.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.3°F cooler on this date compared to 20-30 years ago.
Planning for October 26th in Naperville, IL? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 58° | 37° | 47° | — | — |
| 2024 | 65° | 39° | 52° | — | — |
| 2023 | 65° | 57° | 61° | 0.36" | — |
| 2022 | 58° | 38° | 48° | 2.18" | — |
| 2021 | 52° | 38° | 45° | 0.25" | — |
| 2020 | 46° | 34° | 40° | 0.13" | — |
| 2019 | 49° | 31° | 40° | — | — |
| 2018 | 51° | 35° | 43° | — | — |
| 2017 | 55° | 32° | 44° | — | — |
| 2016 | 52° | 41° | 46° | 0.58" | — |
| 2015 | 63° | 33° | 48° | — | — |
| 2014 | 74° | 34° | 54° | — | — |
| 2013 | 51° | 24° | 38° | — | — |
| 2012 | 75° | 31° | 53° | 1.17" | — |
| 2011 | 74° | 48° | 61° | 0.2" | — |
| 2010 | 73° | 51° | 62° | 0.43" | — |
| 2009 | 52° | 43° | 47° | 0.25" | — |
| 2008 | 54° | 43° | 48° | — | — |
| 2007 | 56° | 42° | 49° | — | — |
| 2006 | 52° | 33° | 42° | — | — |
| 2005 | 51° | 30° | 41° | — | — |
| 2004 | 76° | 52° | 64° | — | — |
| 2003 | 43° | 33° | 38° | — | — |
| 2002 | 47° | 44° | 45° | 0.08" | — |
| 2001 | 42° | 37° | 40° | — | — |
| 2000warmest | 78° | 58° | 68° | — | — |
| 1999 | 68° | 40° | 54° | — | — |
| 1998 | 77° | 41° | 59° | — | — |
| 1997 | 47° | 39° | 43° | 0.2" | — |
| 1996 | 71° | 42° | 57° | — | — |
| 1995 | 64° | 34° | 49° | — | — |
| 1994 | 52° | 30° | 41° | — | — |
| 1993 | 72° | 43° | 57° | — | — |
| 1992 | 63° | 51° | 57° | — | — |
| 1991 | 65° | 44° | 54° | — | — |
| 1990 | 55° | 27° | 41° | — | — |
| 1989 | 78° | 47° | 62° | — | — |
| 1988 | 45° | 27° | 36° | — | — |
| 1987 | 52° | 30° | 41° | — | — |
| 1986 | 58° | 52° | 55° | 1.02" | — |
| 1985 | 71° | 43° | 57° | — | — |
| 1984 | — | 47° | — | 0.08" | — |
| 1983 | 58° | 35° | 46° | — | — |
| 1982 | 65° | 28° | 46° | — | — |
| 1981 | 55° | 36° | 45° | — | — |
| 1980 | 40° | 34° | 37° | 0.03" | — |
| 1979coldest | 50° | 21° | 36° | — | — |
| 1978 | 55° | 31° | 43° | 0.71" | — |
| 1977 | 63° | 46° | 54° | 0.1" | — |
| 1976 | 46° | 30° | 38° | 0.08" | — |
| 1975 | 58° | 28° | 43° | — | — |
| 1974 | 66° | 28° | 47° | — | — |
| 1973 | 68° | 36° | 52° | — | — |
| 1972 | 59° | 35° | 47° | — | — |
| 1971 | 77° | 50° | 64° | — | — |
55 years of data from LISLE - MORTON ARBORETUM