It sure isn’t legally public available either.

T-mobile customer names and addresses…maybe even more, who knows

I’m not the person who posted the widget issue, but IME many FOSS solutions (not just weather-related) are more often than not aesthetically/UX crap.

You can either buy an app or pay with your data.

No this implies you get a choice, which you don’t. You can get it for free and sell your data, or you can pay for it…and still also sell your data. The real money is in the data, they won’t give that up…ever.

Do you specifically need MATLAB? Because there is SciLab which is free and pretty much does the same.