I've had this for a while but I didn't want it to get lost in all the end of year summaries.
Weather station fan Nolan Waite wrote a little application for the Mac operating system that should put the latest data from the station on the menu bar automatically.
I don't have the means to test out the application, but I encourage anybody who does to please leave feedback on the blog.
But note that the UW weather station is not responsible for the content or the operation of this application.
Contact information for Nolan is contained in the Readme file.
You can download the latest version of the application here:
Current version is 1.2.4, available March 20, 2009