When you are in the app itself on the Watch, using a force touch will put the app and glance into customize mode and allow you to choose the data elements that are of most importance to you. Simply tap on any of the 3 data elements with boxes around them, then scroll the watch crown to select your favorite data elements.
The location used in the Widget is the currently selected location in the Storm Application.
Storm content is also available as a complication on the watch face of the watch. You can choose a few different data options that will fit into various complication positions.