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Typical weather in Chicago, IL (Illinois), USA on June 15

High Temperatures

On June 15 in Chicago, IL (Illinois), USA the average high temperature is 79.7 °F (26.5 °C). The lowest recored high temperature was 56.8 °F (13.8 °C) in 1989 and the highest recored high temperature was 102.0 °F (38.9 °C) in 1987. The high temperature is usually* between 73.5 °F (23.1 °C) and 85.9 °F (30.0 °C). About a quarter of the time, the high temperature is less than 73.5 °F (23.1 °C), and another quarter of the time, the high temperature is greater than and 85.9 °F (30.0 °C). About 95% of the time, the high temperature has been between 61.7 °F (16.5 °C) and 97.8 °F (36.5 °C).

Low Temperatures

On June 15 in Chicago, IL (Illinois), USA the average low temperature is 60.9 °F (16.1 °C). The lowest recored low temperature was 43.3 °F (6.3 °C) in 1961 and the lowest recored low temperature was 82.9 °F (28.3 °C) in 2022. The low temperature is usually* between 56.0 °F (13.3 °C) and 65.9 °F (18.8 °C). About a quarter of the time, the low temperature is less than 56.0 °F (13.3 °C), and another quarter of the time, the low temperature is greater than and 65.9 °F (18.8 °C). About 95% of the time, the low temperature has been between 46.6 °F (8.1 °C) and 75.3 °F (24.0 °C).

Frost

On June 15 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: