According to Davis.
A sharing feature will be implemented by Q2/2018.
Meanwhile, if your weather station is set for public sharing (Device > Device Info > Weatherlink Network > Public), you can share the URL to your current conditions Bulletin with your family, friends and neighbors. As long as they are registered with a WeatherLink.com 2.0 account, they can view your data.
WeatherLink Mobile App
Have your family, friends or neighbors download the app and create a WeatherLink account. You can either share a link to your weather station, or they can search for your station name or location on the map. With a simple click on the ‘Add Station’ button, your weather station will be added to their list of stations on their home screen.