i use the chicago tribune's weather site on the web because it has a really good and easy to navigate radar zoomable down to the neighborhood level, and their head meteorologist, Tom Skilling, is so good that many people say he doesn't just forecast the weather, he creates it. because i also ride directly along the shore of lake michigan, i'll also check the near-shore marine forecast from the national weather service to get an idea about what kind of wind conditions i'm gonna be up against. i find that for immediate lakeshore areas, the marine wind forecasts are usually more accurate than the normal wind forecasts for more inland areas. land/water borders seem to usually have more aggressive and unstable wind patterns.