Weather on June 26
Naperville, IL
55 Years of Data
Avg High
85°F
Avg Low
62°F
Warmest
1991
92°F avg
Coldest
2017
60°F avg
About This Date
June 26th in Naperville, IL typically brings warm summer weather, with average highs around 85°F and lows near 62°F. Over 55 years of records, the warmest June 26th was in 1991 (92°F average), while the coldest was 2017 (60°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 36% of June 26th dates historically, with the wettest June 26th recording 7.77" of rain. The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
Planning for June 26th in Naperville, IL? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 90° | 73° | 81° | 0.03" | — |
| 2024 | 83° | 72° | 77° | 0.25" | — |
| 2023 | 85° | 64° | 74° | 0.51" | — |
| 2022 | 77° | 64° | 71° | 1.07" | — |
| 2021 | 77° | 69° | 73° | 2.08" | — |
| 2020 | 85° | 60° | 72° | 0.1" | — |
| 2019 | 85° | 66° | 75° | — | — |
| 2018 | 80° | 65° | 72° | 0.61" | — |
| 2017coldest | 71° | 49° | 60° | — | — |
| 2016 | 89° | 62° | 76° | — | — |
| 2015 | 81° | 59° | 70° | 0.18" | — |
| 2014 | 83° | 59° | 71° | 0.03" | — |
| 2013 | 87° | 67° | 77° | 1.27" | — |
| 2012 | 76° | 50° | 63° | — | — |
| 2011 | 78° | 54° | 66° | — | — |
| 2010 | 84° | 66° | 75° | 1.7" | — |
| 2009 | 93° | 67° | 80° | — | — |
| 2008 | 79° | 66° | 72° | 0.36" | — |
| 2007 | 87° | 68° | 78° | — | — |
| 2006 | 75° | 60° | 68° | 7.77" | — |
| 2005 | 96° | 68° | 82° | — | — |
| 2004 | 74° | 48° | 61° | — | — |
| 2003 | 93° | 62° | 78° | — | — |
| 2002 | 89° | 70° | 79° | 2.16" | — |
| 2001 | 90° | 59° | 74° | — | — |
| 2000 | 88° | 67° | 77° | — | — |
| 1999 | 90° | 60° | 75° | — | — |
| 1998 | 97° | 67° | 82° | 4.5" | — |
| 1997 | 88° | 60° | 74° | 0.05" | — |
| 1996 | 85° | 51° | 68° | — | — |
| 1995 | 83° | 61° | 72° | — | — |
| 1994 | 84° | 63° | 73° | — | — |
| 1993 | 86° | 57° | 72° | — | — |
| 1992 | 80° | 54° | 67° | — | — |
| 1991warmest | 93° | 91° | 92° | — | — |
| 1990 | 85° | 65° | 75° | — | — |
| 1989 | 92° | 67° | 79° | — | — |
| 1988 | 96° | 61° | 78° | — | — |
| 1987 | 75° | 58° | 66° | 1.65" | — |
| 1986 | 92° | 51° | 71° | — | — |
| 1985 | 92° | 62° | 77° | — | — |
| 1984 | 84° | 61° | 72° | 0.15" | — |
| 1983 | 95° | 64° | 80° | — | — |
| 1982 | 76° | 54° | 65° | — | — |
| 1981 | 80° | 53° | 67° | 0.03" | — |
| 1980 | 92° | 65° | 78° | — | — |
| 1979 | 86° | 54° | 70° | — | — |
| 1978 | 90° | 67° | 78° | 0.71" | — |
| 1977 | 89° | 52° | 70° | — | — |
| 1976 | 89° | 60° | 75° | — | — |
| 1975 | 84° | — | — | — | — |
| 1974 | 80° | 49° | 64° | — | — |
| 1973 | 84° | 69° | 77° | — | — |
| 1972 | 82° | 53° | 68° | — | — |
| 1971 | 88° | 59° | 73° | — | — |
55 years of data from LISLE - MORTON ARBORETUM