Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On July 9 in CHICAGO the average high temperature is 77.2 °F (25.1 °C). The lowest recored high temperature was 62.6 °F (17.0 °C) in 2015 and the highest recored high temperature was 88.5 °F (31.4 °C) in 2007. The high temperature is usually* between 72.2 °F (22.3 °C) and 82.2 °F (27.9 °C). About a quarter of the time, the high temperature is less than 72.2 °F (22.3 °C), and another quarter of the time, the high temperature is greater than and 82.2 °F (27.9 °C). About 95% of the time, the high temperature has been between 62.6 °F (17.0 °C) and 91.7 °F (33.2 °C).
Low Temperatures
On July 9 in CHICAGO the average low temperature is 68.6 °F (20.4 °C). The lowest recored low temperature was 57.7 °F (14.3 °C) in 2015 and the lowest recored low temperature was 78.1 °F (25.6 °C) in 2020. The low temperature is usually* between 65.4 °F (18.6 °C) and 71.8 °F (22.1 °C). About a quarter of the time, the low temperature is less than 65.4 °F (18.6 °C), and another quarter of the time, the low temperature is greater than and 71.8 °F (22.1 °C). About 95% of the time, the low temperature has been between 59.3 °F (15.2 °C) and 78.0 °F (25.5 °C).
Frost
On July 9 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