Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On August 7 in CHICAGO the average high temperature is 79.2 °F (26.2 °C). The lowest recored high temperature was 70.7 °F (21.5 °C) in 2014 and the highest recored high temperature was 88.9 °F (31.6 °C) in 2012. The high temperature is usually* between 75.3 °F (24.1 °C) and 83.2 °F (28.4 °C). About a quarter of the time, the high temperature is less than 75.3 °F (24.1 °C), and another quarter of the time, the high temperature is greater than and 83.2 °F (28.4 °C). About 95% of the time, the high temperature has been between 67.9 °F (19.9 °C) and 90.6 °F (32.5 °C).
Low Temperatures
On August 7 in CHICAGO the average low temperature is 70.8 °F (21.6 °C). The lowest recored low temperature was 66.2 °F (19.0 °C) in 2009 and the lowest recored low temperature was 79.9 °F (26.6 °C) in 2025. The low temperature is usually* between 68.6 °F (20.3 °C) and 73.1 °F (22.8 °C). About a quarter of the time, the low temperature is less than 68.6 °F (20.3 °C), and another quarter of the time, the low temperature is greater than and 73.1 °F (22.8 °C). About 95% of the time, the low temperature has been between 64.3 °F (18.0 °C) and 77.4 °F (25.2 °C).
Frost
On August 7 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 0.0% of the time.
Data Source(s)
The data used to compute the average high/low temperatures for this location were taken from the following stations:
- CHICAGO — Integrated Surface Dataset (ISD) station ID: 997338 — from year 2005 to 2025