I have tried so many weather apps over the years, even paying for more than a few. I always returned to WeatherMan. But I was never satisfied with it. I find a decent, if not excellent radar function to be essential. More, it does not give my second most desired feature - hourly forecasts. I found myself merely using the menubar function and relying on web-based weather (e.g. WeatherUnderground, local news affiliate weather, etc.). But I continued to want I it all in one app! The above is a roundabout way of saying Forecast Bar is easily the best Mac weather app at the moment. I had tried it a few times but there was always something about it, especially the active map and the high CPU/RAM hit. The map is most excellent now. The hit on resources is as little as any other weather app that does anything substantial. My standby, Weatherman, does use much less. But while it does more than so many it still doesn't match up to Forecast Bar. I've now bought it for my iPad and iPhone. Also, easily the most customizable!