Umm... I hate to break it to you.The downside of EFBs is that they have no more insight into the weather or forecasting than the average PPL... which is little to none.
In the not-to-distant future, AI may actually become a good tool where you put in your limitations and it will actualy give you some insight as to whether or not you should make the flight. But until then, it's still on you, not an EFB.