Chicago Weather In October In Celsius

The hottest day in Chicago Illinois in October for the past 47 years was 33°C, and the standard high is 17°C. In the last 47 years the lowest measured October temperature in Chicago was -8°C, and the average low daily temperature is 6°C.

Chicago usually receives an average of 6.88 cm of rain during the month and averages 1.02 cm of snow.