Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On July 1 in CHICAGO the average high temperature is 75.8 °F (24.3 °C). The lowest recored high temperature was 58.1 °F (14.5 °C) in 2015 and the highest recored high temperature was 88.3 °F (31.3 °C) in 2025. The high temperature is usually* between 69.9 °F (21.1 °C) and 81.6 °F (27.5 °C). About a quarter of the time, the high temperature is less than 69.9 °F (21.1 °C), and another quarter of the time, the high temperature is greater than and 81.6 °F (27.5 °C). About 95% of the time, the high temperature has been between 58.8 °F (14.9 °C) and 92.7 °F (33.7 °C).
Low Temperatures
On July 1 in CHICAGO the average low temperature is 66.2 °F (19.0 °C). The lowest recored low temperature was 55.6 °F (13.1 °C) in 2015 and the lowest recored low temperature was 79.3 °F (26.3 °C) in 2025. The low temperature is usually* between 62.2 °F (16.8 °C) and 70.2 °F (21.2 °C). About a quarter of the time, the low temperature is less than 62.2 °F (16.8 °C), and another quarter of the time, the low temperature is greater than and 70.2 °F (21.2 °C). About 95% of the time, the low temperature has been between 54.5 °F (12.5 °C) and 77.9 °F (25.5 °C).
Frost
On July 1 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