Harper's Weekly / Public domain
Chicago, IL Weather on August 25
Chicago hits 97°F on August 25, 2003 in extreme heat record
August 25 in Chicago has seen extreme temperature swings across 53 years of records, with the mercury soaring to 97°F in 2003, a striking 16 degrees above the typical high of 81°F. The coldest reading for this date came in 1977 when temperatures dipped to just 53°F, showing a remarkable 44-degree range between record extremes. This wide variance underscores how variable late summer weather can be in the Midwest before fall arrives.
What to Expect on August 25
Planning for August 25th in Chicago, IL? Stay hydrated and seek shade during peak afternoon hours.
Frequently Asked Questions
What was the warmest August 25 ever in Chicago?
The warmest August 25 in Chicago, IL reached 97°F in 2003. That is 16°F above the long-term average high of 81°F.
What was the coldest August 25 ever in Chicago?
The coldest August 25 in Chicago, IL dropped to 53°F in 1977. That is 14°F below the long-term average low of 67°F.
What is the average temperature on August 25 in Chicago?
On August 25, Chicago averages a high of 81°F and a low of 67°F based on 53 years of NOAA weather observations from CHICAGO GRANT PARK.
How many years of weather data are available for August 25 in Chicago?
We have 53 years of weather records for August 25 in Chicago, IL, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
August 25 Weather History in Chicago
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 70°F | 57°F | -- | -- |
| 2024 | 91°F | 75°F | -- | -- |
| 2023 | 82°F | 71°F | 0" | -- |
| 2022 | 80°F | 66°F | -- | -- |
| 2021 | 91°F | 72°F | -- | -- |
| 2020 | 87°F | 73°F | -- | -- |
| 2019 | 74°F | 65°F | -- | -- |
| 2018 | 86°F | 65°F | -- | -- |
| 2017 | 70°F | 59°F | -- | -- |
| 2016 | 77°F | 70°F | -- | -- |
| 2015 | 67°F | 59°F | -- | -- |
| 2014 | 83°F | 71°F | -- | -- |
| 2013 | 90°F | 70°F | -- | -- |
| 2012 | 89°F | 74°F | -- | -- |
| 2011 | 77°F | 70°F | -- | -- |
| 2010 | 82°F | 68°F | -- | -- |
| 2009 | 83°F | 66°F | -- | -- |
| 2008 | 73°F | 67°F | -- | -- |
| 2007 | 77°F | 67°F | -- | -- |
| 2006 | 84°F | 70°F | -- | -- |
| 2005 | 78°F | 68°F | -- | -- |
| 2004 | 75°F | 67°F | 0.45" | -- |
| 2003 | 97°F | 72°F | 0" | -- |
| 2002 | 84°F | 67°F | 0" | -- |
| 2001 | 81°F | 71°F | 0.8" | -- |
| 2000 | 85°F | 64°F | 0" | -- |
| 1999 | 72°F | 67°F | 0.16" | -- |
| 1998 | 86°F | 70°F | 0.2" | -- |
| 1997 | 73°F | 63°F | -- | -- |
| 1994 | 90°F | 76°F | 0" | -- |
| 1993 | 88°F | 71°F | 0" | -- |
| 1992 | 90°F | 72°F | 0" | -- |
| 1991 | 88°F | 67°F | 0" | -- |
| 1990 | 83°F | 68°F | 0" | -- |
| 1989 | 76°F | 64°F | 0" | -- |
| 1988 | 83°F | 63°F | 0" | -- |
| 1987 | 71°F | 58°F | 0.18" | -- |
| 1986 | 77°F | 64°F | 0" | -- |
| 1985 | 76°F | 58°F | 0.07" | -- |
| 1984 | 82°F | 59°F | 0" | -- |
| 1983 | 86°F | 72°F | 0" | -- |
| 1982 | 77°F | 57°F | 0.45" | -- |
| 1981 | 82°F | 71°F | 0.17" | -- |
| 1980 | 85°F | 66°F | 0" | -- |
| 1979 | 75°F | 59°F | 0" | -- |
| 1978 | 88°F | 64°F | 0" | -- |
| 1977 | 75°F | 53°F | 0.01" | -- |
| 1976 | 80°F | 72°F | -- | -- |
| 1975 | 82°F | 72°F | -- | -- |
| 1974 | 77°F | 63°F | -- | -- |
| 1973 | 83°F | 70°F | -- | -- |
| 1972 | 76°F | 68°F | -- | -- |
| 1971 | 85°F | 62°F | 0.01" | -- |
Based on 53 years of data from NOAA station: CHICAGO GRANT PARK
How Has August 25 Changed?
Temperatures on this date have remained relatively stable over the past several decades.
Monthly Climate Averages
Historical temperature and precipitation averages for Chicago, IL, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.