at weather underground, choose airport only and you wont get the PWS for that vicinity. Then again, if your far enough away from an airport, it could be off by a little bit, but shouldn't be much unless the nearest airport is far away. Small airports report weather too.
Me, I use a combination of the default weather sidebar gadget in Vista for current temp (almost always pretty close), or if I'm looking ahead I often go to accuweather.com. For radar though, I go to weather.com as they seem to have one of the best interactive radar, and even if not using interactive, the image is the most readable, clear, and precise.