Affects Version/s: 1.1.5
Fix Version/s: None
Currently the browser is reporting mixed secure and insecure content for users of this portlet. The images related to the wether are insecure (well some are).
Others have identified the issue at the yahoo site: https://forums.developer.yahoo.net/discussion/6313/weather-api-https-images
The solution in the forum linked above is to change the service URL in use. It is kinda wierd: it seems that you have to use one url for https or the other for http. I believe that the portal is likely always implemented for use over https so I would recommend updating to using the https endpoints if possible.
Example from the linked forum:
Is it possible to switch?