So what does a private organization deciding to charge for their own API access have to do with the government???
Get your weather data from NWS if you want... serving an API to anyone/everyone costs money, and AccuWeather apparently decided enough was enough. AccuWeather has no obligation to give you free resources. Same as Reddit, same as Twitter, same as so many companies before them.
Oh no, that's right. It must be a conspiracy to end the world!
Here's the actual NWS API[1], you know... the free one that's not going away nor is charging for access.