Why is Today no longer in the App Store?
Today Weather first launched in December 2012 and had an innovative approach to weather. It was one of the first swipe-based interfaces, with multiple different views, including highs and lows, and weekly forecast. It also had a "zoomed" view with an overview of all cities. Since that time, many apps have copied Today's approach and features. The zoomed view is also now even present in the default weather app.
With these changes and the weather data costs associated with the app, we decided to no longer support or offer Today Weather for sale. We plan to stop the weather data feed by the end of 2018.