Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On August 5 in CHICAGO the average high temperature is 78.1 °F (25.6 °C). The lowest recored high temperature was 69.4 °F (20.8 °C) in 2014 and the highest recored high temperature was 87.8 °F (31.0 °C) in 2019. The high temperature is usually* between 74.8 °F (23.8 °C) and 81.3 °F (27.4 °C). About a quarter of the time, the high temperature is less than 74.8 °F (23.8 °C), and another quarter of the time, the high temperature is greater than and 81.3 °F (27.4 °C). About 95% of the time, the high temperature has been between 68.7 °F (20.4 °C) and 87.5 °F (30.9 °C).
Low Temperatures
On August 5 in CHICAGO the average low temperature is 70.7 °F (21.5 °C). The lowest recored low temperature was 63.7 °F (17.6 °C) in 2020 and the lowest recored low temperature was 76.6 °F (24.8 °C) in 2025. The low temperature is usually* between 68.0 °F (20.0 °C) and 73.4 °F (23.0 °C). About a quarter of the time, the low temperature is less than 68.0 °F (20.0 °C), and another quarter of the time, the low temperature is greater than and 73.4 °F (23.0 °C). About 95% of the time, the low temperature has been between 62.9 °F (17.1 °C) and 78.5 °F (25.8 °C).
Frost
On August 5 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