How does the "hyper-local" computation work if all the sources are very generalized? Does that mean when your service says there's an 89% chance of rain at my location that's an actual, local probability?
Have you published a backtest against NOAA's data? Have you looked into why they don't provide more hyperlocal data themselves? There's some interesting papers on the work they've done to get wildland firefighters appropriately local data.