I get emails from people trying to do weather apps all the time. But the best emails I get are from Jack and Adam at Dark Sky — these guys just get it.

They just publicly launched [Forecast.io](http://blog.forecast.io/post/46290267206/announcing-forecast) and it’s amazing. I’ve been using it for a bit and here’s my verdict on it: it’s hard not to set as your homepage.

Truly great work.

Now it is ad supported, but I honestly don’t know that there is any other workable business model for weather sites at this point.

Ok, [just go check it our for yourself](http://forecast.io/).