Weather on August 17
Chicago, IL
55 Years of Data
Avg High
81°F
Avg Low
67°F
Warmest
1988
92°F avg
Coldest
1979
65°F avg
About This Date
August 17th in Chicago, IL typically brings warm summer weather, with average highs around 81°F and lows near 67°F. Over 53 years of records, the warmest August 17th was in 1988 (92°F average), while the coldest was 1979 (65°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 19% of August 17th dates historically, with the wettest August 17th recording 4.24" 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 17th in Chicago, IL? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 69° | 75° | — | — |
| 2024 | 77° | 70° | 73° | — | — |
| 2023 | 81° | 62° | 71° | 0.81" | — |
| 2022 | 77° | 66° | 72° | — | — |
| 2021 | 79° | 68° | 73° | — | — |
| 2020 | 78° | 70° | 74° | — | — |
| 2019 | 79° | 71° | 75° | — | — |
| 2018 | 78° | 68° | 73° | — | — |
| 2017 | 82° | 72° | 77° | — | — |
| 2016 | 87° | 71° | 79° | — | — |
| 2015 | 91° | 68° | 80° | — | — |
| 2014 | 72° | 64° | 68° | — | — |
| 2013 | 76° | 67° | 71° | — | — |
| 2012 | 74° | 62° | 68° | — | — |
| 2011 | 87° | 71° | 79° | — | — |
| 2010 | 77° | 69° | 73° | — | — |
| 2009 | 84° | 68° | 76° | — | — |
| 2008 | 87° | 69° | 78° | — | — |
| 2007 | 78° | 70° | 74° | — | — |
| 2006 | 82° | 69° | 76° | — | — |
| 2005 | 82° | 70° | 76° | — | — |
| 2004 | 83° | 63° | 73° | 0.58" | — |
| 2003 | 84° | 73° | 79° | — | — |
| 2002 | 88° | 68° | 78° | — | — |
| 2001 | 79° | 60° | 69° | — | — |
| 2000 | 77° | 63° | 70° | 3.07" | — |
| 1999 | 88° | 69° | 78° | — | — |
| 1998 | 85° | 70° | 77° | — | — |
| 1997 | 77° | 64° | 71° | — | — |
| 1994 | 80° | 61° | 70° | — | — |
| 1993 | 79° | 70° | 74° | — | — |
| 1992 | 75° | 55° | 65° | — | — |
| 1991 | 91° | 73° | 82° | — | — |
| 1990 | 83° | 70° | 76° | 0.46" | — |
| 1989 | 77° | 61° | 69° | — | — |
| 1988warmest | 101° | 83° | 92° | — | — |
| 1987 | 93° | 71° | 82° | 3.56" | — |
| 1986 | 86° | 68° | 77° | — | — |
| 1985 | 84° | 67° | 75° | — | — |
| 1984 | 85° | 73° | 79° | 0.13" | — |
| 1983 | 91° | 69° | 80° | 4.24" | — |
| 1982 | 82° | 66° | 74° | — | — |
| 1981 | 74° | 61° | 67° | — | — |
| 1980 | 72° | 60° | 66° | 1.19" | — |
| 1979coldest | 72° | 59° | 65° | 2.46" | — |
| 1978 | 83° | 68° | 75° | — | — |
| 1977 | 82° | 61° | 71° | — | — |
| 1976 | 74° | 62° | 68° | — | — |
| 1975 | 79° | 65° | 72° | 0.08" | — |
| 1974 | 73° | 67° | 70° | — | — |
| 1973 | 80° | 70° | 75° | — | — |
| 1972 | 94° | 77° | 85° | — | — |
| 1971 | 78° | 60° | 69° | — | — |
53 years of data from CHICAGO GRANT PARK