Morris Average Temperature by Month

This page shows the average temperature in each month of the year in Morris, Illinois. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Morris?
In Morris, Illinois, the warmest month is July, with an average daily high temperature of 84.7 °F and an average low of 65.1 °F.
What's the Coldest Month in Morris?
In Morris, Illinois, the coolest month is January, with an average daily high temperature of 31.5 °F and an average low of 15.7 °F.
Month Avg. High Avg. Low
January 31.5 °F 15.7 °F
February 35.8 °F 19.4 °F
March 47.7 °F 28.9 °F
April 60.9 °F 39.5 °F
May 71.9 °F 51.0 °F
June 81.5 °F 61.5 °F
July 84.7 °F 65.1 °F
August 82.8 °F 62.9 °F
September 78.1 °F 55.3 °F
October 64.4 °F 42.9 °F
November 49.4 °F 31.6 °F
December 37.1 °F 21.7 °F
Year 60.7 °F 41.5 °F
Weather Station Details
Years Station Coordinates
1911–2024 Morris 1 Nw location
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