Everyone here is correct! If it rains, it rains. You can have fun in the rain...it's really a mindset. I was there two years ago in September. For the most part it was hot and sunny. But....for two days it downpoured! I mean ridiculous rain, drenching, down pour. I put on my poncho and hit the parks. Everyone was wet everywhere I went. You got off a ride and everyone was in the exit area waiting for a break that never came...running from one bit of cover to the next. I just went for it. It was like that for both days. I went everywhere and did everything in spite of it and had a great day. Just make sure you cover yourself well and have shoes that don't get soaked through. Your fiance' will love you just as much whether it is rainy or sunny! And....you may get plenty of breaks in between the storms. It's all about making your own magical day...no matter what. Congratulations on your engagement!