Weather Underground (wunderground) has an API. It's free for limited usage: http://www.wunderground.com/weather/api/d/docs http://www.wunderground.com/weather/a

Weather Underground (wunderground) has an API. It's free for limited usage: http://www.wunderground.com/weather/api/d/docs http://www.wunderground.com/weather/api/d/docs