I am not a coder but decided to have a look and found a livedata.php script in the template set. In this script it has temp_feel variable which I presume is the 'feels like'. Comparing most recent vs older versions it looks like the calculation has changed between these versions.
The most recent version by SaratogaWX in livedata.php has: $weather["temp_feel"] = apparent_temperature($weather['temp'],$weather['humidity'],$weather['wind_speed']);
The first version posted by SaratogaWX dated January 4, 2019 has: $weather["temp_feel"] = heatIndex($cumulus[2], $cumulus[3]); // must set temp_units first
An August 2018 version from Brian the livedata.php has: $weather["temp_feel"] = heatIndex($cumulus[2], $cumulus[3]); // must set temp_units first
So it appears that in the most recent version Ken has modified Brian's calculation and that gives a slightly different result.
Enjoy,
Paul
EDIT:
I am also testing Wim's (Leuven Template author) Weather Underground version that uses the WU API and that shows a different result as well. The FeelsIike variable in the temperature_block is much different. Therefore, as the script authors have said, it is important to not mix between the versions.
http://www.komokaweather.com/pws-wu/index.php Wim's version for WU API
http://www.komokaweather.com/pws/index.php Ken's version for Cumulus 1 and MX
http://www.komokaweather.com/pws-wfl/in ... theme=dark Ken's version for Cumulus but using the WiFiLogger realtime.txt file (which is the same format as the Cumulus reasltime.txt file but does not have all of the data that is calculated by Cumulus).
