- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On June 17 in CHICAGO the average high temperature is 75.8 °F (24.3 °C). The lowest recored high temperature was 54.5 °F (12.5 °C) in 2019 and the highest recored high temperature was 96.1 °F (35.6 °C) in 2024. The high temperature is usually* between 68.5 °F (20.3 °C) and 83.0 °F (28.3 °C). About a quarter of the time, the high temperature is less than 68.5 °F (20.3 °C), and another quarter of the time, the high temperature is greater than and 83.0 °F (28.3 °C). About 95% of the time, the high temperature has been between 54.7 °F (12.6 °C) and 96.8 °F (36.0 °C).
Low Temperatures
On June 17 in CHICAGO the average low temperature is 63.1 °F (17.3 °C). The lowest recored low temperature was 51.8 °F (11.0 °C) in 2019 and the lowest recored low temperature was 79.7 °F (26.5 °C) in 2024. The low temperature is usually* between 58.5 °F (14.7 °C) and 67.6 °F (19.8 °C). About a quarter of the time, the low temperature is less than 58.5 °F (14.7 °C), and another quarter of the time, the low temperature is greater than and 67.6 °F (19.8 °C). About 95% of the time, the low temperature has been between 49.7 °F (9.9 °C) and 76.4 °F (24.6 °C).
Frost
On June 17 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 2025