Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On October 17 in CHICAGO the average high temperature is 60.5 °F (15.8 °C). The lowest recored high temperature was 44.8 °F (7.1 °C) in 2022 and the highest recored high temperature was 80.2 °F (26.8 °C) in 2016. The high temperature is usually* between 54.9 °F (12.7 °C) and 66.1 °F (18.9 °C). About a quarter of the time, the high temperature is less than 54.9 °F (12.7 °C), and another quarter of the time, the high temperature is greater than and 66.1 °F (18.9 °C). About 95% of the time, the high temperature has been between 44.3 °F (6.8 °C) and 76.7 °F (24.8 °C).
Low Temperatures
On October 17 in CHICAGO the average low temperature is 49.8 °F (9.9 °C). The lowest recored low temperature was 38.3 °F (3.5 °C) in 2022 and the lowest recored low temperature was 64.4 °F (18.0 °C) in 2016. The low temperature is usually* between 45.4 °F (7.5 °C) and 54.2 °F (12.3 °C). About a quarter of the time, the low temperature is less than 45.4 °F (7.5 °C), and another quarter of the time, the low temperature is greater than and 54.2 °F (12.3 °C). About 95% of the time, the low temperature has been between 37.1 °F (2.8 °C) and 62.5 °F (16.9 °C).
Frost
On October 17 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