It used to be just "wind chill" but that didn't work when it got hot so they came up with "real feel" and added the warm feeling. I'm sure a calm day in Arizona is pretty close to the air temp. A 95° day with 95% humidity and a 20 mph wind here in Iowa will have a feel good over 95.A balmy 19° with 8° "real feel".
I guess the whole real feel thing is supposedly a combination of inputs versus just wind velocity?
Wind
Humidity (North Dakota dry cold)
Sun/cloud cover