Weather on July 17
Joliet, IL
55 Years of Data
Avg High
85°F
Avg Low
64°F
Warmest
2012
83°F avg
Coldest
2014
63°F avg
About This Date
July 17th in Joliet, IL typically brings warm summer weather, with average highs around 85°F and lows near 64°F. Over 54 years of records, the warmest July 17th was in 2012 (83°F average), while the coldest was 2014 (63°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 26% of July 17th dates historically, with the wettest July 17th recording 2.26" of rain. The last decade has been 3.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.6°F cooler on this date compared to 20-30 years ago.
Planning for July 17th in Joliet, IL? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 68° | 73° | — | — |
| 2024 | 82° | 67° | 74° | 0.13" | — |
| 2023 | 79° | 63° | 71° | — | — |
| 2022 | 79° | 69° | 74° | — | — |
| 2021 | 73° | 66° | 70° | — | — |
| 2020 | 86° | 65° | 75° | — | — |
| 2019 | 85° | 70° | 77° | 2.06" | — |
| 2018 | 88° | 71° | 79° | 0.15" | — |
| 2017 | 77° | 57° | 67° | — | — |
| 2016 | 78° | 61° | 69° | — | — |
| 2015 | 78° | 59° | 69° | 2.26" | — |
| 2014coldest | 73° | 54° | 63° | — | — |
| 2013 | 91° | 73° | 82° | — | — |
| 2012warmest | 95° | 72° | 83° | — | — |
| 2011 | 87° | 69° | 78° | 0.03" | — |
| 2010 | 87° | 65° | 76° | — | — |
| 2009 | 81° | 56° | 68° | 0.84" | — |
| 2008 | 88° | 70° | 79° | — | — |
| 2007 | 82° | 63° | 72° | 0.3" | — |
| 2006 | 92° | 70° | 81° | — | — |
| 2005 | 89° | 55° | 72° | — | — |
| 2004 | 83° | 63° | 73° | — | — |
| 2003 | 82° | 63° | 72° | — | — |
| 2002 | 90° | 69° | 79° | — | — |
| 2001 | 86° | 67° | 76° | — | — |
| 2000 | 84° | 64° | 74° | — | — |
| 1999 | 91° | 71° | 81° | — | — |
| 1998 | 90° | 66° | 78° | — | — |
| 1997 | 94° | 69° | 81° | — | — |
| 1996 | 91° | 67° | 79° | 0.03" | — |
| 1995 | 92° | 71° | 81° | — | — |
| 1994 | 81° | 64° | 72° | 0.1" | — |
| 1993 | 80° | 66° | 73° | — | — |
| 1992 | 76° | 63° | 69° | 0.03" | — |
| 1991 | 87° | 67° | 77° | — | — |
| 1990 | 82° | 59° | 71° | 0.03" | — |
| 1989 | 85° | 60° | 72° | — | — |
| 1988 | 94° | 69° | 81° | 0.1" | — |
| 1987 | 77° | 54° | 65° | — | — |
| 1986 | 93° | 66° | 80° | — | — |
| 1985 | 83° | 56° | 69° | — | — |
| 1984 | 84° | 58° | 71° | — | — |
| 1983 | 92° | 72° | 82° | — | — |
| 1982 | 88° | 68° | 78° | 2.21" | — |
| 1981 | 84° | 61° | 72° | — | — |
| 1980 | 91° | 61° | 76° | — | — |
| 1979 | 80° | 58° | 69° | — | — |
| 1978 | 84° | 62° | 73° | — | — |
| 1977 | 76° | 65° | 70° | 0.74" | — |
| 1976 | 79° | 52° | 65° | — | — |
| 1974 | 92° | 64° | 78° | — | — |
| 1973 | 87° | 55° | 71° | — | — |
| 1972 | 86° | 64° | 75° | — | — |
| 1971 | 86° | 62° | 74° | — | — |
54 years of data from JOLIET