1. Long-press on the graph you wish to compare all the different forecast models for, then click Compare, or just double-tap on the graph to go to compare.
2. Swipe left-right to change the position of the date/time indicator line.
3. Swipe up-down to view other forecast model graphs if there are more than fit on one screen.
2. Double-tap on a forecast model graph to go back to main screen and date with the chosen model data, or just click the back arrow to return to the main screen.