This is an Android app for use with a WeeWx weather station such as mine.
Get the app from google play. Link to it on Google Play
Once installed then go to the settings area and set: XML file url to:
Then set refresh time to 5 minutes (or more if you prefer). You probably also want to set to put a tick in the rest of the boxes on the setup menu as well.
You can then add the app widget to the main desktop and it should update every 5 mins.