Most of us fill our schedules without looking at the long range forecast. It probably wouldn't help as they are rarely accurate here in Michigan. Today I have 7 cottages to view and looking at the radar it is going to be a wet day. Showing homes in the rain has both advantages and disadvantages. You can see if those roof leaks are still leaking, that is a good thing. Some cottages don't have great driveways so rain could be a factor here. "Carry an umbrella fella" sounds like good advice as well as making sure your clients remove shoes so as to not track in mud. If you can get past the minor inconveniences showing homes in the rain, it will answer a lot questions you might have such as drainage, roof leaks and how well the home "waethers" a storm. Here in Michigan almost every rain we think "could be snow" so I will be thankful I don't have to shovel the rain and off I go. Best of luck in all you do.