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If you planning to travel to Rushmore Cave, Keystone, South Dakota, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 2:24 PM. The temperature feels like 37.6 with a humidity level of 43 so dress accordingly. Cloud coverage is 42 percent with visibility at 14.3 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 17 MPH. At the end of the day don’t miss the sunset at 11:18 PM.
