When weather planning, based on the previous posts I’ve seen, I use a similar set of tools as everyone else. One of the things that makes flight planning interesting/fun/challenging is the multi-dimensional aspect of looking at data across: time, altitudes and the various inputs (icing, turbulence, prog charts, metars, taf’s, etc)
In any case, aviationweather.gov has a new tool that you can download and run on your desktop called Flightpath. It allows you to put in your flight path in, then lets you use sliders to show data based on altitude and time. This is going to be VERY helpful!