The weather can be unpredictable. That is why you need to be prepared for rain as well. The important thing is that you protect your things well so it will not get wet. This will prevent your things from getting soaked and in turn, prevent mildew and water spots. The most critical items are usually the furniture since they are made from wood and any type of clothing. To protect your things it would be advisable to wrap them in shrink wrap. It would also be better if the vehicle is nearer to the house or if it is in the garage so your things will not get rained on.  You could even put your things there in advance to make the work faster during the move. If the vehicle will not fit your garage, at least have it parked as near as possible so you can minimize the exposure to rain. You also need to protect your new house from dirt and damage. For instance, mud is bound to get stuck on your shoes so you need to have rugs in doorways.  Step on them first so the mud and other dirt will not be brought inside. By preventing wet floors, you also prevent slippage. You would not only protect your things but yourself as well. Carpets are harder to clean so you need this non-slip carpet protection. Hard floor can be protected by neoprene floor runners too.