- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On August 22 in CHICAGO the average high temperature is 77.7 °F (25.4 °C). The lowest recored high temperature was 61.0 °F (16.1 °C) in 2009 and the highest recored high temperature was 86.4 °F (30.2 °C) in 2007. The high temperature is usually* between 73.7 °F (23.2 °C) and 81.7 °F (27.6 °C). About a quarter of the time, the high temperature is less than 73.7 °F (23.2 °C), and another quarter of the time, the high temperature is greater than and 81.7 °F (27.6 °C). About 95% of the time, the high temperature has been between 66.1 °F (18.9 °C) and 89.4 °F (31.9 °C).
Low Temperatures
On August 22 in CHICAGO the average low temperature is 68.6 °F (20.4 °C). The lowest recored low temperature was 55.6 °F (13.1 °C) in 2009 and the lowest recored low temperature was 74.8 °F (23.8 °C) in 2025. The low temperature is usually* between 65.8 °F (18.8 °C) and 71.5 °F (21.9 °C). About a quarter of the time, the low temperature is less than 65.8 °F (18.8 °C), and another quarter of the time, the low temperature is greater than and 71.5 °F (21.9 °C). About 95% of the time, the low temperature has been between 60.3 °F (15.7 °C) and 77.0 °F (25.0 °C).
Frost
On August 22 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