Keeping dogs inside when it rains

Although our dogs are kept inside the house, their toilet is the front yard and sometimes the backyard. That is the problem when it rains and even when the rain stops, the yard is wet so the dogs would get wet when they go out. In that case, the garage which is dry is temporarily used as the dog's toilet. The only amenity is to spread old newspapers so the dirt will not be scattered and easy to pick up.

There was once a housemaid who let the dogs out after the rains. Can you imagine our 2 dogs with their white coats? Both were smeared with muddy water, huh.