Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On June 23 in CHICAGO the average high temperature is 77.5 °F (25.3 °C). The lowest recored high temperature was 64.6 °F (18.1 °C) in 2008 and the highest recored high temperature was 98.6 °F (37.0 °C) in 2025. The high temperature is usually* between 71.6 °F (22.0 °C) and 83.5 °F (28.6 °C). About a quarter of the time, the high temperature is less than 71.6 °F (22.0 °C), and another quarter of the time, the high temperature is greater than and 83.5 °F (28.6 °C). About 95% of the time, the high temperature has been between 60.3 °F (15.7 °C) and 94.8 °F (34.9 °C).
Low Temperatures
On June 23 in CHICAGO the average low temperature is 66.4 °F (19.1 °C). The lowest recored low temperature was 57.2 °F (14.0 °C) in 2008 and the lowest recored low temperature was 86.2 °F (30.1 °C) in 2025. The low temperature is usually* between 62.5 °F (17.0 °C) and 70.3 °F (21.3 °C). About a quarter of the time, the low temperature is less than 62.5 °F (17.0 °C), and another quarter of the time, the low temperature is greater than and 70.3 °F (21.3 °C). About 95% of the time, the low temperature has been between 55.1 °F (12.8 °C) and 77.8 °F (25.4 °C).
Frost
On June 23 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