Weather radar is now available in the app for the continental US, just in time for tonight's rain!

Nothing to see here in NJ right now though.
Big storm in the midwest though...
https://mobile.boydsmaps.com/#5.00/41.6295/-85.2308/conus/0.00/0.00
The NWS only provides the radar imagery, you need to add your own base map. On the other site, I overlaid the radar on a HERE road map but was never happy with that. Had to make the radar very transparent to be able to see the map and that obscures the details. So I made my own simple US basemap that is drawn on top of the radar. The idea was to concentrate on the radar imagery itself and only provide some simple landmarks as a frame of reference. Turned out to be harder to acheive clarity than I expected, may want to re-visit this at some point. Maximum zoom is level 11, the radar pixels are so large that there's no point in zooming in any farther.
Note that this map does not automatically refresh, it's a static map that doesn't change after you select it. The imagery on the server is updated every 5 minutes, you will need to manually re-load the map to see any changes as time passes. This is probably obvious, but when you link to the radar map, it shows current conditions. So, by the time you read this, that link will look different from the screenshot above.
As mentioned earlier, if you don't see the map then it may be necessary to clear your cache by deleting site data. The map also works in a web browser on your computer, but the style is intended for a phone's small screen.