Your sitemap is OK. Google has a cache of an old contact page you had at that URL
You can see it is the top link on this search
http://www.google.com/search?q=site%3Awww.snoqualmieweather.com+contact&ie=UTF-8
This is Google’s cache of http://www.snoqualmieweather.com/contact. It is a snapshot of the page as it appeared on Aug 8, 2008 04:35:32 GMT. The current page could have changed in the meantime.
You just have to wait for google to purge it out naturally or you can make a mod rewrite to 301 redirect that old URL to your new URL
The redirect help if anybody clicks on the google link, but they probably would contact you from your site anyway.