Been having some issues with my weather widget (Yahoo Widgets) not displaying weather info. Did some poking around today and come to find out Weather Underground's API, which Widescape Weather uses is no longer free or available.
So, that pretty much renders this old Widget useless now. The last update was five years ago.
That just leaves Werewolf Monitor on my desktop. Sigh.
Interesting. I was just having a problem with the Dashboard weather widget in El Capitan on my MBP. The widget stopped updating (or for that matter, displaying anything) yesterday, for no apparent reason. However, Dashboard weather continued working just fine on my PowerPC Macs under Leopard, which mystified me until I investigated a bit.
Seems that Leopard's older version of the weather widget uses Accuweather as its source, whereas the newer version that installs with El Cap uses The Weather Channel and is "Powered by Yahoo!" Apparently some issues have arisen with the javascript parser OS X uses in communication with the weather service (see discussion in
this MR thread), which has caused the later version of the widget to break.
After reading your post here, I wondered if it might be more than coincidence that the newer Dashboard weather widget and your Widescape Weather widget both have some connection to Yahoo. I tried modifying the javascript parser as suggested
here (which I found via the aforementioned MR thread), but it had no effect. I then copied the older version of the weather widget from a PB running Leopard to my MBP running El Cap; but again no effect - neither version of the widget would work.
Finally, I trashed El Cap's weatherParser.js file and replaced it with the one from Leopard, and voila! The older Accuweather-based version of the widget began to work in El Cap. The newer Yahoo/Weather Channel-based version became partially functional too, but would only display one day's weather and seemed to freeze when I tried to change the locale, although eventually it did let me do so. I disabled the Yahoo/WC version and am now using the older Accuweather version without issue.
So anyway, I'm not that familiar with Yahoo Widgets but I do know that Apple's Dashboard operates in similar fashion. If your Widescape Weather widget relies on a javascript parser to fetch its data, it might be possible for you to modify that script and restore functionality, perhaps even with a different weather provider? I don't suppose the effort could do any harm, in any event. Just a thought, FWIW.