A weather-resistant electrical device enclosure that includes a base defining an interior and a rear wall for being mounted to a supporting structure, at least one opening in the rear wall for receiving an insert plate having an electrical device opening for receiving an electrical device, a forwardly-facing access opening for accessing the interior of the base, and a peripheral front rim surrounding the access opening remote from the rear wall of the base. A cover is pivotally-mounted in relation to the base and movable between a closed position and an open position. The cover includes a peripheral cover flange terminating at an outer edge extending around the cover and outwardly from the peripheral front rim of the base when in the closed position to define a parametrical water-deflecting overhang.