Du Quoin Average Temperature by Month

This page shows the average temperature in each month of the year in Du Quoin, Illinois. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Du Quoin?
In Du Quoin, Illinois, the warmest month is July, with an average daily high temperature of 87.8 °F and an average low of 67.9 °F.
What's the Coldest Month in Du Quoin?
In Du Quoin, Illinois, the coolest month is January, with an average daily high temperature of 41.1 °F and an average low of 24.4 °F.
Month Avg. High Avg. Low
January 41.1 °F 24.4 °F
February 46.5 °F 28.2 °F
March 56.7 °F 36.5 °F
April 68.1 °F 46.6 °F
May 77.1 °F 56.4 °F
June 85.4 °F 64.7 °F
July 87.8 °F 67.9 °F
August 86.8 °F 65.4 °F
September 80.7 °F 57.0 °F
October 69.8 °F 46.1 °F
November 55.8 °F 35.8 °F
December 45.0 °F 28.4 °F
Year 66.8 °F 46.5 °F
Weather Station Details
Years Station Coordinates
1893–2024 Du Quoin 4 SE location
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