This was not PVOutput’s problem It was mine. When I used WU data it was being reported as Celsius and I had applied a rule which converted it from C to F degrees. The switch was reporting F degrees which were being changed by the rule. That solved the problem.
@Iwsmiser, Are you using the Ambient Weather API? If so, what do the temperature tracings look like? Looked at your account and looks like the temp tracings are smoother than the new WUG API assuming you are using the Ambient Weather API. My account is kettBVhome.