Source (required if based on other people's work): https://github.com/yuriyost/com.github.yuriyost.yahooweather
This resizable widget has a similar skin to Yawp widget.
This weather widget based on Yahoo! Weather Widget by Symeon Huang: https://store.kde.org/p/998912/
This weather widget that makes use of beloved Yahoo! Weather data. Written in pure QML.
For the install this plasma pkg start the run file into widget directory.
Widget will be installed into your home directory.
Use reinstall file if you want reinstall widget.
How find WOEID?
The first one to find your WOEID go to http://woeid.rosselliot.co.nz/
Another one is included in Yahoo's documentation. Go to browse or search for your city from Yahoo! Weather. The WOEID is in the URL for the forecast page for that city. You can also get the WOEID by entering your zip code on the home page. For example, if you search for Los Angeles on the Weather home page (http://weather.yahoo.com), the forecast page for that city is http://weather.yahoo.com/united-states/california/los-angeles-2442047/. The WOEID is 2442047.