Weather on July 27
Joliet, IL
55 Years of Data
Avg High
83°F
Avg Low
65°F
Warmest
1997
87°F avg
Coldest
1984
62°F avg
About This Date
July 27th in Joliet, IL typically brings warm summer weather, with average highs around 83°F and lows near 65°F. Over 54 years of records, the warmest July 27th was in 1997 (87°F average), while the coldest was 1984 (62°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 24% of July 27th dates historically, with the wettest July 27th recording 3.4" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for July 27th in Joliet, IL? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 89° | 75° | 82° | — | — |
| 2024 | 79° | 59° | 69° | — | — |
| 2023 | 89° | 72° | 80° | — | — |
| 2022 | 79° | 63° | 71° | — | — |
| 2021 | 91° | 69° | 80° | — | — |
| 2020 | 90° | 71° | 80° | 0.64" | — |
| 2019 | 83° | 64° | 73° | — | — |
| 2018 | 86° | 58° | 72° | — | — |
| 2017 | 82° | 64° | 73° | 1.4" | — |
| 2016 | 85° | 69° | 77° | — | — |
| 2015 | 83° | 69° | 76° | — | — |
| 2014 | 79° | 67° | 73° | — | — |
| 2013 | 72° | 58° | 65° | 0.03" | — |
| 2012 | 87° | 67° | 77° | — | — |
| 2011 | 87° | 69° | 78° | — | — |
| 2010 | 83° | 62° | 72° | — | — |
| 2009 | 82° | 61° | 71° | — | — |
| 2008 | 83° | 60° | 71° | — | — |
| 2007 | 79° | 65° | 72° | 0.46" | — |
| 2006 | 83° | 72° | 77° | 0.18" | — |
| 2005 | 78° | 58° | 68° | — | — |
| 2004 | 75° | 62° | 69° | — | — |
| 2003 | 83° | 71° | 77° | — | — |
| 2002 | 77° | 72° | 74° | 0.51" | — |
| 2001 | 80° | 64° | 72° | — | — |
| 2000 | 83° | 62° | 72° | — | — |
| 1999 | 86° | 74° | 80° | — | — |
| 1998 | 83° | 61° | 72° | — | — |
| 1997warmest | 98° | 75° | 87° | — | — |
| 1996 | 80° | 58° | 69° | — | — |
| 1995 | 86° | 68° | 77° | — | — |
| 1994 | 78° | 58° | 68° | — | — |
| 1993 | 86° | 70° | 78° | — | — |
| 1992 | 82° | 66° | 74° | — | — |
| 1991 | 80° | 58° | 69° | — | — |
| 1990 | 85° | 66° | 75° | — | — |
| 1989 | 86° | 72° | 79° | — | — |
| 1988 | 86° | 67° | 76° | — | — |
| 1987 | 94° | 70° | 82° | 0.53" | — |
| 1986 | 87° | 65° | 76° | — | — |
| 1985 | 81° | 57° | 69° | — | — |
| 1984coldest | 69° | 55° | 62° | 1.12" | — |
| 1983 | 88° | 61° | 74° | — | — |
| 1982 | 89° | 69° | 79° | — | — |
| 1981 | 70° | 62° | 66° | 0.05" | — |
| 1980 | 76° | 63° | 69° | 3.4" | — |
| 1979 | 82° | 63° | 72° | — | — |
| 1978 | 90° | 62° | 76° | 1.88" | — |
| 1977 | 77° | 50° | 64° | — | — |
| 1976 | 88° | 68° | 78° | — | — |
| 1974 | 90° | 63° | 76° | — | — |
| 1973 | 93° | 66° | 80° | 0.08" | — |
| 1972 | 70° | 62° | 66° | 0.1" | — |
| 1971 | 80° | 52° | 66° | — | — |
54 years of data from JOLIET