Weather Timeline used to be awesome, but it used Dark Sky APIs and got shut down during this whole Apple acquisition thing. The app got acquired by MyRadar and they say it will be back using the MyRadar APIs, but will probably never be as good without the Dark Sky data behind it.
His timeline is messed up. A year ago, Weather Timeline got pulled from the app store because sales wasn't covering the API cost. After a month or two, it got sold to the company that made MyRadar.