As a gadget intended to be outside, your new smart doorbell is a tough little cookie. Smart doorbells should be able to deal with whatever the weather can throw at it, even the more extreme — some models can deal with temperature variants from -40 to 122 degrees Fahrenheit.
But do check the details of your chosen WIFI doorbell to see if there's a waterproof IP rating, as well as the small warranty print before you buy.