The original Vista weather gadget just didn't get the weather info from internet after I reinstalled one of my notebook. thus I had to try to find another one. during the search found those 3 that's pretty good in look also good for use:

Ranking 1: The WChannel Desktop Weather gadget:

 

nice animation to show forecast when in the sidebar. mouse over will show detail info like humidity, sunrise and sunset time. click will have fly-out showing 12-36 hours forecast. weather data coming from Weather.com, although lack of radar image or link to follow.

 

Ranking 2: MSN Weather gadget:

same outlook as the original Vista weather gadget, but this one got fly-out for 2-3 day forecast. the gadget size is small so that it's able to put different places' weather aside the sidebar without consuming too much space. not bad!

 

Ranking 3: The Weather Channel Sidebar Gadget:

no fancy animation, just simple weather icon and forecast. this is the original gadget from Weather.com, and it got radar link to see live radar images, which currently providing static image and weather layer over MSN Virtual Earth. Simple and nice to just put it on the desktop for checking weather changes...

 

FYI.