- 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 August 28 in CHICAGO O'HARE INTERNATIONAL the average high temperature is 84.3 °F (29.1 °C). The lowest recored high temperature was 66.9 °F (19.4 °C) in 1992 and the highest recored high temperature was 99.0 °F (37.2 °C) in 2024. The high temperature is usually* between 79.4 °F (26.3 °C) and 89.3 °F (31.8 °C). About a quarter of the time, the high temperature is less than 79.4 °F (26.3 °C), and another quarter of the time, the high temperature is greater than and 89.3 °F (31.8 °C). About 95% of the time, the high temperature has been between 70.0 °F (21.1 °C) and 98.7 °F (37.0 °C).
Low Temperatures
On August 28 in CHICAGO O'HARE INTERNATIONAL the average low temperature is 63.6 °F (17.5 °C). The lowest recored low temperature was 42.1 °F (5.6 °C) in 1986 and the lowest recored low temperature was 77.0 °F (25.0 °C) in 2020. The low temperature is usually* between 58.9 °F (14.9 °C) and 68.2 °F (20.1 °C). About a quarter of the time, the low temperature is less than 58.9 °F (14.9 °C), and another quarter of the time, the low temperature is greater than and 68.2 °F (20.1 °C). About 95% of the time, the low temperature has been between 50.0 °F (10.0 °C) and 77.1 °F (25.1 °C).
Frost
On August 28 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: