Weather on June 25
Naperville, IL
55 Years of Data
Avg High
86°F
Avg Low
60°F
Warmest
1988
87°F avg
Coldest
1986
58°F avg
About This Date
June 25th in Naperville, IL typically brings warm summer weather, with average highs around 86°F and lows near 60°F — a 26°F daily swing. Over 55 years of records, the warmest June 25th was in 1988 (87°F average), while the coldest was 1986 (58°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 35% of June 25th dates historically, with the wettest June 25th recording 4.7" of rain. The last decade has been 3.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.5°F cooler on this date compared to 20-30 years ago.
Planning for June 25th in Naperville, IL? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 71° | 82° | 2.74" | — |
| 2024 | 87° | — | — | 0.76" | — |
| 2023 | 92° | 65° | 78° | 1.52" | — |
| 2022 | 91° | 59° | 75° | — | — |
| 2021 | 75° | 68° | 72° | 4.7" | — |
| 2020 | 81° | 58° | 69° | — | — |
| 2019 | 78° | 61° | 69° | 0.3" | — |
| 2018 | 84° | 58° | 71° | — | — |
| 2017 | 84° | 54° | 69° | — | — |
| 2016 | 83° | 60° | 71° | — | — |
| 2015 | 78° | 64° | 71° | 0.74" | — |
| 2014 | 87° | 62° | 75° | — | — |
| 2013 | 85° | 66° | 75° | 0.89" | — |
| 2012 | 92° | 60° | 76° | — | — |
| 2011 | 77° | 58° | 67° | — | — |
| 2010 | 83° | 59° | 71° | — | — |
| 2009 | 94° | 71° | 82° | — | — |
| 2008 | 80° | 60° | 70° | 0.38" | — |
| 2007 | 78° | 64° | 71° | — | — |
| 2006 | 81° | 59° | 70° | 0.18" | — |
| 2005 | 96° | 68° | 82° | — | — |
| 2004 | 70° | 51° | 60° | 0.48" | — |
| 2003 | 94° | 69° | 81° | — | — |
| 2002 | 95° | 70° | 82° | — | — |
| 2001 | 88° | 55° | 71° | — | — |
| 2000 | 85° | 64° | 74° | 3.33" | — |
| 1999 | 89° | 62° | 76° | — | — |
| 1998 | 97° | 77° | 87° | — | — |
| 1997 | 96° | 69° | 83° | 3.43" | — |
| 1996 | 81° | 55° | 68° | — | — |
| 1995 | 90° | 62° | 76° | — | — |
| 1994 | 85° | 55° | 70° | 0.18" | — |
| 1993 | 80° | 65° | 72° | 0.1" | — |
| 1992 | 80° | 48° | 64° | — | — |
| 1991 | 90° | 55° | 72° | — | — |
| 1990 | 84° | 54° | 69° | — | — |
| 1989 | 93° | 64° | 79° | — | — |
| 1988warmest | 103° | 71° | 87° | — | — |
| 1987 | 90° | 68° | 79° | — | — |
| 1986coldest | 77° | 40° | 58° | 0.15" | — |
| 1985 | 91° | 55° | 73° | — | — |
| 1984 | 80° | 50° | 65° | 1.42" | — |
| 1983 | 93° | 61° | 77° | — | — |
| 1982 | 86° | 54° | 70° | — | — |
| 1981 | 85° | 61° | 73° | — | — |
| 1980 | 91° | 62° | 77° | — | — |
| 1979 | 81° | 41° | 61° | — | — |
| 1978 | 86° | 67° | 76° | — | — |
| 1977 | 88° | 62° | 75° | — | — |
| 1976 | 82° | 56° | 69° | 0.61" | — |
| 1975 | 82° | 65° | 73° | 1.57" | — |
| 1974 | 75° | 44° | 60° | — | — |
| 1973 | 81° | 47° | 64° | — | — |
| 1972 | 75° | 48° | 62° | — | — |
| 1971 | 91° | 66° | 79° | 0.58" | — |
55 years of data from LISLE - MORTON ARBORETUM