That’s the NOAA REST API and I did a bit of initial work on it using the HTTP binding you can find at Which weather binding to use - #27 by rlkoshak. I abandoned the work when parsing the forecasted precipitation became challenging and then the excellent OpenWeatherMap and DarkSky bindings were released. I’m going to switch over to OpenWeatherMap for now (It’s a really easy switch as both have basically the same Channels) but their predictions and conditions for my area are not as accurate as others. NOAA should be pretty good because I believe they have a lot of sensors at the Air Force Academy that isn’t too far away.
But as Bruce points out, for sunrise and sunset the Astro binding is excellent.