Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On October 11 in CHICAGO the average high temperature is 64.4 °F (18.0 °C). The lowest recored high temperature was 40.6 °F (4.8 °C) in 2009 and the highest recored high temperature was 82.4 °F (28.0 °C) in 2024. The high temperature is usually* between 58.4 °F (14.7 °C) and 70.4 °F (21.4 °C). About a quarter of the time, the high temperature is less than 58.4 °F (14.7 °C), and another quarter of the time, the high temperature is greater than and 70.4 °F (21.4 °C). About 95% of the time, the high temperature has been between 47.0 °F (8.3 °C) and 81.9 °F (27.7 °C).
Low Temperatures
On October 11 in CHICAGO the average low temperature is 54.6 °F (12.5 °C). The lowest recored low temperature was 34.7 °F (1.5 °C) in 2009 and the lowest recored low temperature was 68.7 °F (20.4 °C) in 2010. The low temperature is usually* between 49.0 °F (9.4 °C) and 60.2 °F (15.7 °C). About a quarter of the time, the low temperature is less than 49.0 °F (9.4 °C), and another quarter of the time, the low temperature is greater than and 60.2 °F (15.7 °C). About 95% of the time, the low temperature has been between 38.3 °F (3.5 °C) and 70.9 °F (21.6 °C).
Frost
On October 11 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 0.3% 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