I too am having the same problem. It has not updated since July. I would prefer to use weatherzone anyway. Is it possible to delete one and put the other in its place - can you show me how?
my news (yahoo news) has also stopped in July - can this be fixed?
This is what solved it for me.
I had the same problem on my LG Stylo 4. Accuweather app and wiget wouldn't update. I kept hitting the refresh arrows on the wiget, and at some point there was a notification on the bottom of my screen "Cannot sync while battery saver is on". I turned it off and voila! Accuweather started syncing.
Took me a while to get a connection to Accuweather....Finally tried disconnecting the wi-fi and using the mobile connection (AT&T), and it magically started to work. Haven't figured out "why" yet, but at least it's a start.