- Integrated Surface Dataset (ISD) station ID: 725300
- Country: US
- State: IL
- Latitude: 41.96
- Longitude: -87.932
A Weather Bureau Army Navy (WBAN) station ID was found for this station. Older data may be available at the WBAN page.
High Temperatures
On June 18 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 82.7 °F (28.2 °C). The lowest recored high temperature was 54.3 °F (12.4 °C) in 1950 and the highest recored high temperature was 97.0 °F (36.1 °C) in 2024. The high temperature is usually* between 77.5 °F (25.3 °C) and 88.0 °F (31.1 °C). About a quarter of the time, the high temperature is less than 77.5 °F (25.3 °C), and another quarter of the time, the high temperature is greater than and 88.0 °F (31.1 °C). About 95% of the time, the high temperature has been between 67.5 °F (19.7 °C) and 98.0 °F (36.7 °C).
Low Temperatures
On June 18 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 59.5 °F (15.3 °C). The lowest recored low temperature was 42.1 °F (5.6 °C) in 1980 and the lowest recored low temperature was 77.0 °F (25.0 °C) in 2024. The low temperature is usually* between 54.4 °F (12.4 °C) and 64.7 °F (18.2 °C). About a quarter of the time, the low temperature is less than 54.4 °F (12.4 °C), and another quarter of the time, the low temperature is greater than and 64.7 °F (18.2 °C). About 95% of the time, the low temperature has been between 44.5 °F (6.9 °C) and 74.6 °F (23.7 °C).
Frost
On June 18 in CHICAGO O'HARE INTERNATIONAL 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: