- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On October 30 in CHICAGO the average high temperature is 55.6 °F (13.1 °C). The lowest recored high temperature was 42.3 °F (5.7 °C) in 2020 and the highest recored high temperature was 79.3 °F (26.3 °C) in 2024. The high temperature is usually* between 49.4 °F (9.7 °C) and 61.7 °F (16.5 °C). About a quarter of the time, the high temperature is less than 49.4 °F (9.7 °C), and another quarter of the time, the high temperature is greater than and 61.7 °F (16.5 °C). About 95% of the time, the high temperature has been between 37.8 °F (3.2 °C) and 73.3 °F (22.9 °C).
Low Temperatures
On October 30 in CHICAGO the average low temperature is 45.6 °F (7.6 °C). The lowest recored low temperature was 35.1 °F (1.7 °C) in 2020 and the lowest recored low temperature was 69.8 °F (21.0 °C) in 2024. The low temperature is usually* between 40.2 °F (4.6 °C) and 50.9 °F (10.5 °C). About a quarter of the time, the low temperature is less than 40.2 °F (4.6 °C), and another quarter of the time, the low temperature is greater than and 50.9 °F (10.5 °C). About 95% of the time, the low temperature has been between 30.1 °F (-1.1 °C) and 61.1 °F (16.2 °C).
Frost
On October 30 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 4.3% 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