Hi Jana,
I think that August is a bit tricky with the thunderstorms that pop up due to the humidity. Usually they are during the day but they can happen at night as well.
Here are some options:
1. Role the dice and take a chance that you will have good weather for Pirates and Pals Cruise. Remember you will always have the character meet and greet and snacks.
2. Wait until you get closer to your trip and take a chance at a last minute booking of the cruise for a night that has a lower chance of thunderstorms.
3. If it is pirates you are looking for, then head to the
Pirate League. You can also head over to Adventureland and see if Captain Hook, Mr. Smee or Peter are hanging out there as well.
4. To see the Magic Kingdom fireworks in a different way, try the
Tomorrowland Terrace Fireworks Dessert Party. Here your family sees the fireworks from one of the best locations with dessert too!
I hope these ideas help you have a magical vacation!
Beth