Weather on August 11
Chicago, IL
55 Years of Data
Avg High
81°F
Avg Low
66°F
Warmest
2010
84°F avg
Coldest
2004
59°F avg
About This Date
August 11th in Chicago, IL typically brings warm summer weather, with average highs around 81°F and lows near 66°F. Over 53 years of records, the warmest August 11th was in 2010 (84°F average), while the coldest was 2004 (59°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 23% of August 11th dates historically, with the wettest August 11th recording 1.8" of rain. The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
Planning for August 11th in Chicago, 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° | 71° | 80° | — | — |
| 2024 | 81° | 62° | 71° | — | — |
| 2023 | 85° | 71° | 78° | 0.05" | — |
| 2022 | 76° | 66° | 71° | — | — |
| 2021 | 88° | 73° | 80° | — | — |
| 2020 | 77° | 67° | 72° | — | — |
| 2019 | 83° | 69° | 76° | — | — |
| 2018 | 81° | 72° | 76° | — | — |
| 2017 | 78° | 68° | 73° | — | — |
| 2016 | 92° | 70° | 81° | — | — |
| 2015 | 77° | 68° | 73° | — | — |
| 2014 | 75° | 67° | 71° | — | — |
| 2013 | 77° | 67° | 72° | — | — |
| 2012 | 77° | 61° | 69° | — | — |
| 2011 | 82° | 67° | 74° | — | — |
| 2010warmest | 93° | 76° | 84° | — | — |
| 2009 | 76° | 68° | 72° | — | — |
| 2008 | 74° | 68° | 71° | — | — |
| 2007 | 90° | 75° | 82° | — | — |
| 2006 | 75° | 68° | 72° | — | — |
| 2005 | 77° | 70° | 73° | — | — |
| 2004coldest | 63° | 55° | 59° | — | — |
| 2003 | 76° | 65° | 70° | 0.56" | — |
| 2002 | 94° | 72° | 83° | — | — |
| 2001 | 79° | 63° | 71° | — | — |
| 2000 | 80° | 66° | 73° | — | — |
| 1999 | 86° | 70° | 78° | — | — |
| 1998 | 79° | 66° | 72° | — | — |
| 1997 | 71° | 64° | 68° | — | — |
| 1994 | 67° | 59° | 63° | 1.8" | — |
| 1993 | 85° | 69° | 77° | — | — |
| 1992 | 89° | 66° | 78° | 0.71" | — |
| 1991 | 80° | 61° | 70° | — | — |
| 1990 | 83° | 64° | 73° | 1.27" | — |
| 1989 | 84° | 62° | 73° | 0.69" | — |
| 1988 | 91° | 74° | 82° | 0.53" | — |
| 1987 | 80° | 67° | 73° | — | — |
| 1986 | 79° | 59° | 69° | — | — |
| 1985 | 78° | 62° | 70° | — | — |
| 1984 | 82° | 71° | 77° | — | — |
| 1983 | 91° | 65° | 78° | 0.13" | — |
| 1982 | 75° | 55° | 65° | — | — |
| 1981 | 79° | 61° | 70° | — | — |
| 1980 | 76° | 66° | 71° | 0.48" | — |
| 1979 | 77° | 61° | 69° | 0.81" | — |
| 1978 | 78° | 66° | 72° | 0.56" | — |
| 1977 | 87° | 62° | 75° | 0.36" | — |
| 1976 | — | 72° | — | — | — |
| 1975 | 87° | 68° | 78° | — | — |
| 1974 | 84° | 70° | 77° | — | — |
| 1973 | 84° | 70° | 77° | — | — |
| 1972 | 74° | 61° | 67° | — | — |
| 1971 | 75° | 61° | 68° | — | — |
53 years of data from CHICAGO GRANT PARK