My office-mate just turned me on to something that I find has been available at least since June 2006 (from what I've seen in a few blog posts).
If you've ever wanted to know what the weather was going to be like when you were scheduling an event, it's actually very easy. Just go to the Weather Underground page and enter your ZIP code, Airport code, or some other such identifying information in the search box in the upper-left corner of the page and hit ENTER. On the right side of the page, across from the locality name, is a button labelled "ICS." Copy the link location for that button, and use it as the URL for a remote calendar.
If you are using iCal, go to Calendar->Subscribe... in the menu bar and paste in the URL in the dialog box that pops up. If you are using Google Calendar, go to "Manage Calendars" and select "Add calendar" in the Other Calendars section. Select "Public Calendar Address," paste the URL into the box, and click on "Add."
As an example, here is the URL I got from the Weather Underground for Pennington, NJ:
This worked just fine for me in iCal but, unfortunately, when I tried it in Google Calendar, Google was unable to import the calendar info. Sigh.... Of course, YMMV!
Technorati Tags: Weather, iCal, Google Calendar