title: How to get weather info by Latitude & longitude from "http://api.wunderground.com"
body: <p>I can't get weather information from <a href="http://api.wunderground.com" rel="nofollow">http://api.wunderground.com</a> by set latitude and longitude in this way:</p>
  
  <p>String urlString = "http://api.wunderground.com/auto/wui/geo/GeoLookupXML/index.xml?query="+lat+","+lng;</p>
  
  <p>I don't know how to to keep what I need from that xml. How I can do this? There is an example?</p>
  
  <p>I want just to know how to convert this url to a "Document" to read from it the nodes.</p>