I look at accuweather also. It's pretty darn close to actual field conditions. When I log my flights at the field I use the Beaufort Scale to log the approximate wind speed at the time of my flights. Here is the link to the [link=http://en.wikipedia.org/wiki/Beaufort_scale]Beaufort Scale[/link]

We also have a windsock calibrated at 30kts that often sticks straight out! [:@]