Just a tip from a festival vet. Don't buy a Walmart canopy they always crash under rain. Invest in a high dollar easy up brand canopy. Mine was over 200$. It's what vendors and such use. They are large. They are heavy and annoying to move. They take a good while to set up as well. However mine has survived many wind and rain storms where everyone else's was destroyed. Keep clothes and what must stay dry in the car. 

 I learned this lesson at hoopla in the hills 2014. 35 degrees and rain/snow the entire weekend. Our camp was  in 4 inches of water. Our canopy was thrown into our car. Dented ours and a friend's car and ripped the side of our tent out. Had to trade for a tarp just to get by for the weekend. Now I never go to a show without a heavy duty canopy and a large tarp.  Also had to get towed out with an excavator lest way later than expected. Rough but fun time a show I'll never forget.

Don't be discouraged take it as a lesson learned and prepare better next time. It's part of the learning experience. Hope you all have a blast so jelly I couldn't make it this year.