- Latitude: 41.914
- Longitude: -88.246
High Temperatures
On average, the day in August with the warmest high temperature in custom location is August 2 at an average of 84.3 °F (29.1 °C).
On average, the day in August with the coldest high temperature in custom location is August 31 at an average of 81.5 °F (27.5 °C).
Records
The warmest recorded high temperature in August in custom location was 100.9 °F (38.3 °C) on August 3 in the year 1991 at CHICAGO O'HARE INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 725300 — Weather Bureau Army Navy (WBAN): 94846 .
The coldest recorded high temperature in August in custom location was 60.1 °F (15.6 °C) on August 27 in the year 2025 at AURORA MUNICIPAL AIRPORT — Integrated Surface Dataset (ISD) station ID: 744655 — Weather Bureau Army Navy (WBAN): 04808 .
Low Temperatures
On average, the day in August with the warmest low temperature in custom location is August 9 at an average of 63.2 °F (17.4 °C).
On average, the day in August with the coldest low temperature in custom location is August 31 at an average of 60.6 °F (15.9 °C).
Records
The warmest recorded low temperature in custom location was 86.4 °F (30.2 °C) on August 6 in the year 1947 at CHICAGO O'HARE INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 725300 — Weather Bureau Army Navy (WBAN): 94846 .
The coldest recorded low temperature in custom location was 37.9 °F (3.3 °C) on August 29 in the year 1986 at AURORA MUNICIPAL — Integrated Surface Dataset (ISD) station ID: 744655 .
Details
If you would like to see the temperatures for specific days, you can click on the corresponding links below: