I wasn't kidding when I called this the weekend of Festivals. I found two more that could make for fun adventures.
Onion Days
Free
I just added the link, in the title, I've never heard of it before, but it looks fun. There are some free activities like watching a hypnotists, and some activities you pay for, like human monster trucks, and wave runners- which are those giant plastic balls you can walk inside. Look it up and check it out.
Soldier Hollow Classic Sheepdog Championship
$13-$16
This event is a dog lovers dream! There is dog racing, dog demonstrations, and dogs herding sheep. There will be, of course, be vendors booths and food, and they promise that the weather is going to be good, so we'll see how that turns out.