Today's unexpectedly high temperatures on our front porch were brought about by a previously unknown weather phenomenon, "El Gato".
This is an old z-wave 6 in 1 sensor that was brought out of retirement when we spun up home assistant again.
It spikes even when not in direct sunlight, so I think it may just be past its prime. We've got plenty of others integrated, and a weather station in the back yard, so this one was more just a case of using a sensor we had laying around then needing to use it.