> whereas Apple was pulling data from The Weather Company, now part of IBM.

It's turtles all the way down[1]. The Weather Company also leverages NOAA data and is listed as such as a weather service provider on NOAA's site[2]. Although they ostensibly augment it with other sources and apply their own forecasting models to the data, they're still basically repackaging NOAA data in one form or another.

[1] https://en.wikiquote.org/wiki/Turtles_all_the_way_down

[2] https://www.ncdc.noaa.gov/success/weather-service-providers