- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On August 3 in CHICAGO the average high temperature is 79.6 °F (26.4 °C). The lowest recored high temperature was 70.7 °F (21.5 °C) in 2020 and the highest recored high temperature was 89.2 °F (31.8 °C) in 2022. The high temperature is usually* between 76.3 °F (24.6 °C) and 82.9 °F (28.3 °C). About a quarter of the time, the high temperature is less than 76.3 °F (24.6 °C), and another quarter of the time, the high temperature is greater than and 82.9 °F (28.3 °C). About 95% of the time, the high temperature has been between 70.0 °F (21.1 °C) and 89.1 °F (31.7 °C).
Low Temperatures
On August 3 in CHICAGO the average low temperature is 71.3 °F (21.8 °C). The lowest recored low temperature was 64.9 °F (18.3 °C) in 2020 and the lowest recored low temperature was 77.4 °F (25.2 °C) in 2005. The low temperature is usually* between 68.3 °F (20.2 °C) and 74.3 °F (23.5 °C). About a quarter of the time, the low temperature is less than 68.3 °F (20.2 °C), and another quarter of the time, the low temperature is greater than and 74.3 °F (23.5 °C). About 95% of the time, the low temperature has been between 62.6 °F (17.0 °C) and 80.0 °F (26.7 °C).
Frost
On August 3 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