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Typical weather in Chicago, IL (Illinois), USA on August 23

High Temperatures

On August 23 in Chicago, IL (Illinois), USA the average high temperature is 81.6 °F (27.6 °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 77.0 °F (25.0 °C) and 86.2 °F (30.1 °C). About a quarter of the time, the high temperature is less than 77.0 °F (25.0 °C), and another quarter of the time, the high temperature is greater than and 86.2 °F (30.1 °C). About 95% of the time, the high temperature has been between 68.3 °F (20.1 °C) and 95.0 °F (35.0 °C).

Low Temperatures

On August 23 in Chicago, IL (Illinois), USA the average low temperature is 64.6 °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 60.1 °F (15.6 °C) and 69.1 °F (20.6 °C). About a quarter of the time, the low temperature is less than 60.1 °F (15.6 °C), and another quarter of the time, the low temperature is greater than and 69.1 °F (20.6 °C). About 95% of the time, the low temperature has been between 51.6 °F (10.9 °C) and 77.6 °F (25.4 °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.

Data Source(s)

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