Weather on August 27
Joliet, IL
55 Years of Data
Avg High
83°F
Avg Low
64°F
Warmest
1973
85°F avg
Coldest
2015
58°F avg
About This Date
August 27th in Joliet, IL typically brings warm summer weather, with average highs around 83°F and lows near 64°F. Over 53 years of records, the warmest August 27th was in 1973 (85°F average), while the coldest was 2015 (58°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 32% of August 27th dates historically, with the wettest August 27th recording 5.59" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 27th 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 | 77° | 50° | 63° | — | — |
| 2024 | 93° | 73° | 83° | — | — |
| 2023 | 85° | 63° | 74° | — | — |
| 2022 | 79° | 59° | 69° | — | — |
| 2021 | 86° | 68° | 77° | — | — |
| 2020 | 90° | 71° | 80° | — | — |
| 2019 | 75° | 64° | 70° | 1.02" | — |
| 2018 | 92° | 72° | 82° | — | — |
| 2017 | 74° | 58° | 66° | — | — |
| 2016 | 83° | 66° | 74° | 2.16" | — |
| 2015coldest | 65° | 52° | 58° | — | — |
| 2014 | 82° | 69° | 76° | 1.4" | — |
| 2013 | 89° | 67° | 78° | — | — |
| 2012 | 75° | 66° | 71° | 4.95" | — |
| 2011 | 82° | 60° | 71° | — | — |
| 2010 | 78° | 59° | 69° | — | — |
| 2009 | 72° | 59° | 65° | 2.34" | — |
| 2008 | 78° | 59° | 69° | — | — |
| 2007 | 78° | 60° | 69° | — | — |
| 2006 | 77° | 69° | 73° | 0.2" | — |
| 2005 | 83° | 67° | 75° | — | — |
| 2004 | 82° | 68° | 75° | 2.79" | — |
| 2003 | 92° | 70° | 81° | — | — |
| 2002 | 85° | 68° | 76° | — | — |
| 2001 | 84° | 64° | 74° | — | — |
| 2000 | 80° | 66° | 73° | — | — |
| 1999 | 82° | 62° | 72° | — | — |
| 1998 | 86° | 64° | 75° | — | — |
| 1997 | 81° | 59° | 70° | 0.18" | — |
| 1996 | 84° | 64° | 74° | — | — |
| 1995 | 89° | 67° | 78° | — | — |
| 1994 | 83° | 66° | 74° | 0.13" | — |
| 1993 | 92° | 73° | 82° | — | — |
| 1992 | 77° | 63° | 70° | 1.52" | — |
| 1991 | 91° | 69° | 80° | — | — |
| 1990 | 87° | 68° | 78° | — | — |
| 1989 | 79° | 65° | 72° | 0.08" | — |
| 1988 | 79° | 54° | 66° | — | — |
| 1986 | 88° | 58° | 73° | 5.59" | — |
| 1985 | 73° | 54° | 63° | — | — |
| 1984 | 87° | 58° | 72° | — | — |
| 1983 | 89° | 67° | 78° | 0.91" | — |
| 1982 | 75° | 54° | 64° | — | — |
| 1981 | 82° | 65° | 73° | 4.57" | — |
| 1980 | 89° | 63° | 76° | — | — |
| 1979 | 78° | 60° | 69° | 0.74" | — |
| 1978 | 82° | 65° | 73° | 0.86" | — |
| 1977 | 85° | 58° | 71° | — | — |
| 1976 | 86° | 68° | 77° | 0.36" | — |
| 1974 | 93° | 68° | 81° | — | — |
| 1973warmest | 97° | 73° | 85° | — | — |
| 1972 | 76° | 65° | 70° | — | — |
| 1971 | 75° | 57° | 66° | — | — |
53 years of data from JOLIET