The Weatherlink Live reports indoor temp separate from your console. And presume Weatherlink Live is updating to Weatherlink.com and that is where you see the higher temperature compared to the temp on your console?
Where is your WLL device located compared to your console? Could it be exposed to something nearby that generates some heat?
I have an Envoy, a Vue console, and a WLL within 12 inches and they all report very similar indoor temperature.
Enjoy,
Paul