weather in macon mo.
Macon 7 Day Weather. 1  Tuesday:The Macon forecast for Aug 22 is 79 degrees and Partly cloudy. 2  Wednesday:The Macon forecast for Aug 23 is 78 degrees and Sunny. 3  Thursday:The Macon forecast for Aug 24 is 78 degrees and Sunny. 4  Friday:The Macon forecast for Aug 25 is 68 degrees and Overcast.