Weather on September 2
Chicago, IL
55 Years of Data
Avg High
81°F
Avg Low
66°F
Warmest
2011
87°F avg
Coldest
1974
57°F avg
About This Date
September 2nd in Chicago, IL typically brings warm fall weather, with average highs around 81°F and lows near 66°F. Over 53 years of records, the warmest September 2nd was in 2011 (87°F average), while the coldest was 1974 (57°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 9% of September 2nd dates historically, with the wettest September 2nd recording 1.04" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for September 2nd in Chicago, IL? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 65° | 69° | — | — |
| 2024 | 71° | 65° | 68° | — | — |
| 2023 | 88° | 64° | 76° | — | — |
| 2022 | 85° | 72° | 78° | — | — |
| 2021 | 74° | 56° | 65° | — | — |
| 2020 | 85° | 70° | 77° | — | — |
| 2019 | 79° | 62° | 70° | — | — |
| 2018 | 90° | 70° | 80° | — | — |
| 2017 | 71° | 60° | 66° | — | — |
| 2016 | 72° | 65° | 68° | — | — |
| 2015 | 90° | 74° | 82° | — | — |
| 2014 | 78° | 71° | 75° | — | — |
| 2013 | 74° | 66° | 70° | — | — |
| 2012 | 79° | 74° | 76° | — | — |
| 2011warmest | 96° | 77° | 87° | — | — |
| 2010 | 86° | 69° | 78° | — | — |
| 2009 | 71° | 60° | 66° | — | — |
| 2008 | 87° | 71° | 79° | — | — |
| 2007 | 87° | 60° | 74° | — | — |
| 2006 | 74° | 66° | 70° | — | — |
| 2005 | 83° | 66° | 74° | — | — |
| 2004 | 84° | 67° | 75° | — | — |
| 2003 | 72° | 63° | 67° | 0.03" | — |
| 2002 | 84° | 67° | 75° | 1.04" | — |
| 2001 | 80° | 55° | 68° | — | — |
| 2000 | 93° | 74° | 83° | — | — |
| 1999 | 91° | 65° | 78° | — | — |
| 1998 | 76° | 60° | 68° | — | — |
| 1997 | 77° | 62° | 70° | — | — |
| 1994 | 68° | 54° | 61° | — | — |
| 1993 | 77° | 65° | 71° | 0.79" | — |
| 1992 | 75° | 66° | 71° | — | — |
| 1991 | 77° | 64° | 71° | — | — |
| 1990 | 90° | 74° | 82° | — | — |
| 1989 | 77° | 63° | 70° | — | — |
| 1988 | 84° | 65° | 74° | — | — |
| 1987 | 78° | 62° | 70° | — | — |
| 1986 | 81° | 63° | 72° | — | — |
| 1985 | 85° | 68° | 76° | — | — |
| 1984 | 95° | 74° | 84° | — | — |
| 1983 | 86° | 65° | 75° | — | — |
| 1982 | 86° | 66° | 76° | — | — |
| 1981 | 78° | 66° | 72° | 0.1" | — |
| 1980 | 81° | 69° | 75° | — | — |
| 1979 | 84° | 69° | 77° | — | — |
| 1978 | 85° | 64° | 74° | — | — |
| 1977 | 81° | 63° | 72° | 0.79" | — |
| 1976 | 70° | 61° | 65° | — | — |
| 1975 | 74° | 66° | 70° | — | — |
| 1974coldest | 60° | 54° | 57° | — | — |
| 1973 | 91° | 72° | 81° | — | — |
| 1972 | 79° | 61° | 70° | — | — |
| 1971 | 90° | 72° | 81° | — | — |
53 years of data from CHICAGO GRANT PARK