June 23 - Chicago - Weather History and Averages

High Temperatures

On June 23 in Chicago, IL (Illinois), USA the average high temperature is 81.3 °F (27.4 °C). The lowest recored high temperature was 57.9 °F (14.4 °C) in 1974 and the highest recored high temperature was 98.6 °F (37.0 °C) in 2025. The high temperature is usually* between 76.3 °F (24.6 °C) and 86.2 °F (30.1 °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 86.2 °F (30.1 °C). About 95% of the time, the high temperature has been between 66.9 °F (19.4 °C) and 95.6 °F (35.4 °C).

Low Temperatures

On June 23 in Chicago, IL (Illinois), USA the average low temperature is 63.0 °F (17.2 °C). The lowest recored low temperature was 43.9 °F (6.6 °C) in 1982 and the lowest recored low temperature was 86.2 °F (30.1 °C) in 2025. The low temperature is usually* between 58.8 °F (14.9 °C) and 67.2 °F (19.6 °C). About a quarter of the time, the low temperature is less than 58.8 °F (14.9 °C), and another quarter of the time, the low temperature is greater than and 67.2 °F (19.6 °C). About 95% of the time, the low temperature has been between 50.7 °F (10.4 °C) and 75.3 °F (24.1 °C).

Frost

On June 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: