Multiple API features can be combined into a single HTTP request. This is an easy way to economize your requests. The Data Features page documents how features can be combined into a single request.
This is fully supported already. If you look at the README.md (or main landing page for the repo) you will see examples for the Options. Simply comma separate all the options you want to use in the method call.
Taken from their docs here (https://www.wunderground.com/weather/api/d/docs):
Any plans to support this?