August 23 - Chicago - Weather History and Averages

High Temperatures

On August 23 in Chicago, IL (Illinois), USA the average high temperature is 81.8 °F (27.7 °C). The lowest recored high temperature was 66.2 °F (19.0 °C) in 2009 and the highest recored high temperature was 98.1 °F (36.7 °C) in 2023. The high temperature is usually* between 77.3 °F (25.2 °C) and 86.3 °F (30.1 °C). About a quarter of the time, the high temperature is less than 77.3 °F (25.2 °C), and another quarter of the time, the high temperature is greater than and 86.3 °F (30.1 °C). About 95% of the time, the high temperature has been between 68.8 °F (20.4 °C) and 94.8 °F (34.9 °C).

Low Temperatures

On August 23 in Chicago, IL (Illinois), USA the average low temperature is 64.5 °F (18.1 °C). The lowest recored low temperature was 48.0 °F (8.9 °C) in 1952 and the lowest recored low temperature was 82.4 °F (28.0 °C) in 1947. The low temperature is usually* between 60.4 °F (15.8 °C) and 68.5 °F (20.3 °C). About a quarter of the time, the low temperature is less than 60.4 °F (15.8 °C), and another quarter of the time, the low temperature is greater than and 68.5 °F (20.3 °C). About 95% of the time, the low temperature has been between 52.7 °F (11.5 °C) and 76.3 °F (24.6 °C).

Frost

On August 23 in Chicago, IL (Illinois), USA expect the temperatures to drop below freezing for a risk of frost about 0.0% of the time.

Usually* in this context means around 50% of the time, assuming a normal distribution of values.

Data Source(s)

The data used to compute the average high/low temperatures for this location were taken from the following stations: