Add another vote for Wunderground. Great free resource.
I also use WeatherScope since it works on my Mac. As others have mentioned, it's not the easiest to use and takes a while to get use to (as well as setting up just the way you want), but if you have a Mac, it's one of the few options available as a downloadable program.
Also, SimuAWIPS is starting to become a decent program. However, this program seems to be lacking in some areas (such as no VIL, SR velocity, etc.). They are trying to keep it up-to-date and add on new things here and there.
I also use WeatherScope since it works on my Mac. As others have mentioned, it's not the easiest to use and takes a while to get use to (as well as setting up just the way you want), but if you have a Mac, it's one of the few options available as a downloadable program.
Also, SimuAWIPS is starting to become a decent program. However, this program seems to be lacking in some areas (such as no VIL, SR velocity, etc.). They are trying to keep it up-to-date and add on new things here and there.