Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On October 4 in CHICAGO the average high temperature is 66.3 °F (19.1 °C). The lowest recored high temperature was 50.7 °F (10.4 °C) in 2014 and the highest recored high temperature was 82.0 °F (27.8 °C) in 2023. The high temperature is usually* between 60.3 °F (15.7 °C) and 72.4 °F (22.4 °C). About a quarter of the time, the high temperature is less than 60.3 °F (15.7 °C), and another quarter of the time, the high temperature is greater than and 72.4 °F (22.4 °C). About 95% of the time, the high temperature has been between 48.8 °F (9.3 °C) and 83.9 °F (28.9 °C).
Low Temperatures
On October 4 in CHICAGO the average low temperature is 57.5 °F (14.2 °C). The lowest recored low temperature was 37.2 °F (2.9 °C) in 2014 and the lowest recored low temperature was 71.4 °F (21.9 °C) in 2023. The low temperature is usually* between 52.0 °F (11.1 °C) and 63.0 °F (17.2 °C). About a quarter of the time, the low temperature is less than 52.0 °F (11.1 °C), and another quarter of the time, the low temperature is greater than and 63.0 °F (17.2 °C). About 95% of the time, the low temperature has been between 41.5 °F (5.3 °C) and 73.5 °F (23.1 °C).
Frost
On October 4 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 0.1% 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