If you're still making some last-minute travel plans, make sure to complement all your research done with a cyber trip to Wikipedia.org. It's a veritable mine of information from experts (both professionals and locals) and you're guaranteed to at least have a better idea of what a certain place can offer. I use it when doing research, from places to visit to unheard of illnesses like mesothelioma and it is really very helpful.
Comparing it with other data you have is always important though. And with regards places, official websites of course trumps information found in Wiki (maybe you can ask the webmaster to share their information at Wiki so Wiki can be more helpful).
Don't let the rains ruin your travel plans. You may have to adjust the places you go to, but you can still travel and enjoy the remaining days of summer vacation!