Weather on August 16
Naperville, IL
55 Years of Data
Avg High
84°F
Avg Low
60°F
Warmest
1988
86°F avg
Coldest
1979
58°F avg
About This Date
August 16th in Naperville, IL typically brings warm summer weather, with average highs around 84°F and lows near 60°F. Over 54 years of records, the warmest August 16th was in 1988 (86°F average), while the coldest was 1979 (58°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 31% of August 16th dates historically, with the wettest August 16th recording 4.98" of rain. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for August 16th 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° | 71° | 80° | — | — |
| 2024 | 73° | 65° | 69° | 1.7" | — |
| 2023 | 78° | 51° | 65° | 0.03" | — |
| 2022 | 79° | 59° | 69° | — | — |
| 2021 | 81° | 54° | 67° | — | — |
| 2020 | 84° | 59° | 72° | 1.4" | — |
| 2019 | 80° | 59° | 70° | — | — |
| 2018 | 86° | 69° | 78° | 0.41" | — |
| 2017 | 86° | 61° | 73° | — | — |
| 2016 | 78° | 67° | 72° | 0.08" | — |
| 2015 | 90° | 65° | 77° | 0.03" | — |
| 2014 | 78° | 52° | 65° | — | — |
| 2013 | 75° | 50° | 63° | — | — |
| 2012 | 86° | 54° | 70° | — | — |
| 2011 | 82° | 52° | 67° | — | — |
| 2010 | 88° | 62° | 75° | — | — |
| 2009 | 88° | 65° | 76° | 4.98" | — |
| 2008 | 74° | 50° | 62° | — | — |
| 2007 | 82° | 68° | 75° | 0.51" | — |
| 2006 | 84° | 54° | 69° | — | — |
| 2005 | 86° | 62° | 74° | — | — |
| 2004 | 77° | 47° | 62° | — | — |
| 2003 | 89° | 68° | 79° | — | — |
| 2002 | 84° | 72° | 78° | 0.05" | — |
| 2001 | 75° | 64° | 70° | 2.03" | — |
| 2000 | 93° | 59° | 76° | — | — |
| 1999 | 87° | 59° | 73° | — | — |
| 1998 | 89° | 60° | 75° | 0.2" | — |
| 1997 | 92° | 70° | 81° | 0.51" | — |
| 1996 | 81° | 57° | 69° | — | — |
| 1995 | 91° | 72° | 81° | 3.43" | — |
| 1994 | 80° | 52° | 66° | — | — |
| 1993 | 81° | 67° | 74° | 2.29" | — |
| 1992 | 77° | 48° | 63° | — | — |
| 1991 | 91° | 60° | 76° | — | — |
| 1990 | 84° | 64° | 74° | — | — |
| 1989 | 78° | 57° | 68° | 0.25" | — |
| 1988warmest | 99° | 74° | 86° | — | — |
| 1987 | 93° | 74° | 83° | — | — |
| 1985 | 82° | 52° | 67° | — | — |
| 1984 | 93° | 63° | 78° | — | — |
| 1983 | 95° | 63° | 79° | — | — |
| 1982 | 85° | 60° | 72° | — | — |
| 1981 | 82° | 59° | 71° | — | — |
| 1980 | 71° | 60° | 66° | — | — |
| 1979coldest | 73° | 43° | 58° | — | — |
| 1978 | 89° | 64° | 77° | 1.04" | — |
| 1977 | 81° | 70° | 75° | 0.64" | — |
| 1976 | 77° | 44° | 61° | — | — |
| 1975 | 87° | 55° | 71° | — | — |
| 1974 | 87° | 65° | 76° | — | — |
| 1973 | 86° | 58° | 72° | — | — |
| 1972 | 86° | 61° | 73° | — | — |
| 1971 | 84° | 52° | 68° | — | — |
54 years of data from LISLE - MORTON ARBORETUM