Rain cover for outdoor padlock

The invention discloses a rain cover for an outdoor padlock. The rain cover comprises a rain cover body. The rain cover body is made of flexible waterproof materials. The rain cover is characterized in that openings are formed in the side walls and the bottom of the cylindrical rain cover body, waterproof zippers are fixedly arranged at the openings of the side walls of the rain cover body, two through holes are symmetrically formed in the upper portion of the rain cover body and are matched with a rotary rod of the padlock, a water stop ring is fixedly arranged in each through hole, and sealing rubber sleeves are movably arranged in the water stop rings and sleeve the rotary rod of the padlock. The rain cover has the advantages that the rain cover is simple in structure, low in cost and easy to mount; the rain cover is additionally arranged on the padlock, so that the padlock can be prevented from being immersed in rainwater, the service life of the padlock can be prolonged advantageously, maintenance labor and materials can be saved, and the maintenance cost for electricity meter boxes can be reduced.