With Gen3 We give the user two distinct options now.
Interpolated weather data that you don’t have to worry about stations going down or not reporting precipitation which takes the burden off the homeowner of making sure they have an accurate reporting station. Interpolated data is great but won’t be exactly the measured amount that a PWS would give you near the house.
The ability to choose from over 250,000 WU PWS and National stations (Gen 1/2 has about 40,000 PWS stations). I’m also working on a WI plus feature that will self “heal” a chosen station, always making sure you are using one that is online, automatically choosing the next closest station. So yes, a native integration.
@Gene is also running a “bridge” to WU. http://wufyi.com/