I think the change that added the “Sensors” logging device exists to allow you to select arbitrary values exposed by devices as attributes. For instance, the SmartWeather tile has some of the fields from the weather API calls mapped to attributes.
If that works, I’d suggest adding the Weather Station Tile 2.0 device, which exposes almost all of the values as attributes. Thus, you can select that device and set the sensors list to something like
percentPrecipToday,percentPrecipLastHour