The satellite images are already in the app. Just add a "Image/URL" tile and click on Example URLs (I shared these with Joe a while back). The weather radar can be added as an Image/URL tile as follows.
For Weather Radar and radar stations see the following thread
The radar image that I use is from the Weather Underground (the link above used weather.gov), I think it looks nicer. Use the same list of weather stations in the Hubitat thread above and replace the "MPX" below with your station. The dashboard will refresh this as often as you set it (using the "Image/URL" tile), I use 600 for 10 minute:
https://radblast.wunderground.com/cgi-bin/radar/WUNIDS_map?num=20&delay=15&brand=horse&station=MPX
(I've simplified the URL above to make editing easier. This also animates the radar; if you want it static change the "num=20" to "num=0")