How to Show Only 3 Days Forecasts in "plaintext-rss.php" for RSS Feed? -RESOLVED

What script(s) need(s) to be edited to only show 3 days of WxSim forecasts for the “plaintext-rss.php” file output?

UPDATE (4/24/18): Thanks for the script, Steve Fitzgerald at http://tylertexasweather.com Much appreciated! =D>

The RSS feed, http://indiantrailweather.com/plaintext-rss5.php , will be perfect for the scrolling WxSim forecast for the outside LED highway sign! :D/