Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On August 27 in CHICAGO the average high temperature is 77.7 °F (25.4 °C). The lowest recored high temperature was 66.6 °F (19.2 °C) in 2015 and the highest recored high temperature was 91.2 °F (32.9 °C) in 2024. The high temperature is usually* between 72.7 °F (22.6 °C) and 82.7 °F (28.1 °C). About a quarter of the time, the high temperature is less than 72.7 °F (22.6 °C), and another quarter of the time, the high temperature is greater than and 82.7 °F (28.1 °C). About 95% of the time, the high temperature has been between 63.2 °F (17.3 °C) and 92.1 °F (33.4 °C).
Low Temperatures
On August 27 in CHICAGO the average low temperature is 69.2 °F (20.7 °C). The lowest recored low temperature was 59.5 °F (15.3 °C) in 2015 and the lowest recored low temperature was 79.0 °F (26.1 °C) in 2024. The low temperature is usually* between 65.7 °F (18.7 °C) and 72.7 °F (22.6 °C). About a quarter of the time, the low temperature is less than 65.7 °F (18.7 °C), and another quarter of the time, the low temperature is greater than and 72.7 °F (22.6 °C). About 95% of the time, the low temperature has been between 59.1 °F (15.1 °C) and 79.4 °F (26.3 °C).
Frost
On August 27 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 2024