I revamped a pair of html widgets I created a couple years ago. One displays the current local temperature in degrees me;
the other indicates whether or not the city of Minneapolis is currently undergoing a snow emergency.
It's super easy to add them to you web page, blog, journal, whatever. Just visit their respective sites, copy the short html code and paste it into your site.
[Update, December 8, 2012] I (again) re-built the Minneapolis Snow Emergency widget (I somehow lost the original source!). You can find right over yonder.