Apple acquires Dark Sky

John Gruber is right:

I'm hoping that Apple has acquired Dark Sky not merely to beef up the built-in iPhone Weather app (Apple has no first-party Weather app for iPad or Mac, curiously), but to add hyperlocal weather forecasting APIs to its OSes. This would add a competitive advantage for iOS and MacOS both in terms of weather and privacy. Third-party weather apps are notorious for abusing location privileges.

I've used Forecast for years, even after they were bought by Dark Sky, I still type in forecast.io to go to the site. The data is the killer feature but the way they visualise by region, day and hour is just the icing on the cake.