- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On July 26 in CHICAGO the average high temperature is 80.7 °F (27.0 °C). The lowest recored high temperature was 72.3 °F (22.4 °C) in 2014 and the highest recored high temperature was 95.2 °F (35.1 °C) in 2012. The high temperature is usually* between 76.3 °F (24.6 °C) and 85.1 °F (29.5 °C). About a quarter of the time, the high temperature is less than 76.3 °F (24.6 °C), and another quarter of the time, the high temperature is greater than and 85.1 °F (29.5 °C). About 95% of the time, the high temperature has been between 67.9 °F (19.9 °C) and 93.5 °F (34.1 °C).
Low Temperatures
On July 26 in CHICAGO the average low temperature is 71.2 °F (21.8 °C). The lowest recored low temperature was 64.9 °F (18.3 °C) in 2007 and the lowest recored low temperature was 79.7 °F (26.5 °C) in 2025. The low temperature is usually* between 68.1 °F (20.1 °C) and 74.2 °F (23.5 °C). About a quarter of the time, the low temperature is less than 68.1 °F (20.1 °C), and another quarter of the time, the low temperature is greater than and 74.2 °F (23.5 °C). About 95% of the time, the low temperature has been between 62.3 °F (16.8 °C) and 80.1 °F (26.7 °C).
Frost
On July 26 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