On PHPBuilder.com today there's a new tutorial helping you integrate weather data into your site with the help of the Services_Weather PEAR package.
Regardless of whether you consider the weather to be an obsession or nuisance, there are plenty of opportunities to incorporate weather-related data into your Web application. The Services_Weather PEAR Package offers what is perhaps the easiest way to begin retrieving weather-related data.
Included in the post are the commands you'll need to get the package installed (via the PEAR installer) and sample code to set up the connection - in this case to Weather.com - to fetch the results for a search location. The "search" method will return the best guesses for your input and give you the unique code to use for fetching other values, like the current forecast.