Weather on June 15
Joliet, IL
55 Years of Data
Avg High
82°F
Avg Low
60°F
Warmest
1987
87°F avg
Coldest
1997
60°F avg
About This Date
June 15th in Joliet, IL typically brings warm summer weather, with average highs around 82°F and lows near 60°F. Over 53 years of records, the warmest June 15th was in 1987 (87°F average), while the coldest was 1997 (60°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 36% of June 15th dates historically, with the wettest June 15th recording 2.97" of rain. The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
Planning for June 15th in Joliet, IL? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 60° | 72° | — | — |
| 2024 | 87° | 61° | 74° | — | — |
| 2023 | 77° | 58° | 67° | — | — |
| 2022 | 95° | 76° | 85° | — | — |
| 2021 | 87° | 60° | 74° | — | — |
| 2020 | 72° | 52° | 62° | — | — |
| 2019 | 79° | 49° | 64° | 0.05" | — |
| 2018 | 78° | 64° | 71° | — | — |
| 2017 | 89° | 68° | 79° | 0.23" | — |
| 2016 | 87° | 67° | 77° | 2.79" | — |
| 2015 | 83° | 70° | 76° | 0.76" | — |
| 2014 | 77° | 54° | 65° | — | — |
| 2013 | 77° | 55° | 66° | — | — |
| 2012 | 85° | 58° | 71° | — | — |
| 2011 | 78° | 57° | 68° | 1.12" | — |
| 2010 | 74° | 62° | 68° | — | — |
| 2009 | 76° | 54° | 65° | — | — |
| 2008 | 83° | 58° | 70° | — | — |
| 2007 | 91° | 68° | 80° | — | — |
| 2006 | 79° | 55° | 67° | — | — |
| 2005 | 78° | 65° | 71° | 0.05" | — |
| 2004 | 84° | 64° | 74° | 1.09" | — |
| 2003 | 79° | 59° | 69° | — | — |
| 2002 | 68° | 55° | 62° | 1.52" | — |
| 2001 | 92° | 71° | 81° | — | — |
| 2000 | 80° | 51° | 66° | 1.19" | — |
| 1999 | 74° | 53° | 63° | — | — |
| 1998 | 82° | 59° | 71° | 0.79" | — |
| 1997coldest | 73° | 46° | 60° | — | — |
| 1996 | 88° | 60° | 74° | — | — |
| 1995 | 84° | 58° | 71° | — | — |
| 1994 | 96° | 68° | 82° | — | — |
| 1993 | 76° | 54° | 65° | — | — |
| 1992 | 86° | 64° | 75° | 0.33" | — |
| 1991 | 86° | 69° | 78° | — | — |
| 1990 | 84° | 62° | 73° | 0.33" | — |
| 1988 | 92° | 68° | 80° | — | — |
| 1987warmest | 100° | 73° | 87° | — | — |
| 1986 | 74° | 54° | 64° | 1.5" | — |
| 1985 | 75° | 53° | 64° | 1.37" | — |
| 1984 | 75° | 53° | 64° | — | — |
| 1983 | 88° | 58° | 73° | 1.32" | — |
| 1982 | 83° | 56° | 69° | 1.68" | — |
| 1981 | 83° | 74° | 78° | — | — |
| 1980 | 86° | 55° | 71° | 0.53" | — |
| 1979 | 86° | 66° | 76° | — | — |
| 1978 | 76° | 54° | 65° | — | — |
| 1977 | 75° | 55° | 65° | — | — |
| 1976 | 92° | 68° | 80° | — | — |
| 1974 | 81° | — | — | — | — |
| 1973 | 85° | 65° | 75° | 0.56" | — |
| 1972 | 82° | 58° | 70° | 2.97" | — |
| 1971 | 83° | 59° | 71° | — | — |
53 years of data from JOLIET