I think you are wrong. I also have a PWS and upload to WU. But, the driver is NO LONGER pulling from them. It is using a local or in your area service.
This driver enables a Control4 system to represent weather information as a thermostat type device on the Control4 UI. It displays information from the Control4 weather service.
This driver replaces the free Weather Underground driver and can be updated to replace that driver in a project.
As of January 2019, IBM has discontinued the services of the free Weather Underground API. This driver has been built on the framework of the free Weather Underground driver and has been updated to pull weather data from Control4's weather service. It provides similar functionality to that previously provided.
Variables are populated for the provided weather data which can be used in custom programming. Also, the customer can set High and Low warning levels for temperature which can then be used in custom programming.
Weather data is retrieved every 30 minutes by default. This can be adjusted between 10 and 60 minutes.