| Subject: | Please specify a LICENSE value in META.{json,yml} |
General overview: http://blogs.perl.org/users/kentnl_kent_fredric/2012/05/ensure-abstract-and-license-fields-in-your-meta.html
What seems relevant to your project:
Makefile.PL :
+ LICENSE => 'perl' ,
I don't feel you need to declare the license on the content delivered from Weather.Com in the metadata, because the place your software poses in the system is much like a web-browser, and no web browser ships with it the license for all the content your browser might display.