Weatherproof box under eave?

saturation with water or other liquids but subject to moderate degrees of moisture. Examples of such locations include partially protected locations under canopies, marquees, roofed pen porches, and like locations, and interior locations subject to moderated degrees of moisture, such as basements, some barns, and some cold storage buildings.

Conduit Bodies in Damp and Wet Locations
NEC 314.15(A) provides the requirements for conduit bodies installed in damp and wet locations. Although gasketed covers are generally provided for use with conduit bodies, this does not necessarily mean that all conduit bodies are suitable for use in damp or wet locations. Listed conduit bodies are required to be marked “For use in wet locations” or “Wet locations” where determined by test to be suitable for this application. Field assemblies of conduit bodies with listed conduit or cable fittings threaded into conduit body hubs have not typically been evaluated for use in wet locations as part of their listing. Conduit and cable fittings listed and marked for use in wet locations, similarly have not typically been listed for such use when field assembled into the threaded hubs of a conduit body.

Conduit Body Covers
All conduit bodies are required to be provided with compatible covers that are suitable for the conditions of use. Because of industry standardization, covers are not always shipped from the factory with assemblies that include covers and/or gaskets. In dry locations, the covers and conduit bodies of different manufacturers are generally interchangeable. For wet locations, however, a conduit body and a cover specified by the listed manufacturer is required to be used.