Last year I downloaded the weatherstar 4000 emulator from this site. http://www.taiganet.com/forum/index.php/topic,4135.0.html
Once you download and figure out how to set it up, you can customize it to your liking. There's also a forum with lots of answers to questions you may have from others who have set it up on their pcs. I have it set up to run in the same arrangement that TWC had back in the day, with the cities in the current weather in the same order that it was for example. You can also download different theme songs and insert based on whatever season you're in.