So, we play inside. Anyone who knows me, knows that I am a HUGE believer in using your dogs' brains. I think they need it to be happy, well rounded citizens. So, I play games with them, and I teach them tricks, and I practice even just basic commands. 10 minutes of brain work = 1 hour of physical exercise, in just settling the dog, and making them calm and relaxed. The mental exertion totally tuckers them out!
So, even when your dog comes for daycare, and it is completely rotten outside, you can relax, knowing your doggy will still come home tuckered and happy:-)