Wunderground with local image set

I have edited the plugin file to use the icons stored on your wordpress install (in img folder inside the plugin folder). I am using the Incredible set of icons (only that set will show irrespective of what you choose), or you can change the set of files for your own icons (make sure to keep same names). This should solve the problem for some.

You can download it here.

http://wordpress.org/extend/plugins/wunderground/