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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 11:29 AM. The temperature feels like 74.19999999999999 with a humidity level of 68 so dress accordingly. Cloud coverage is 26 percent with visibility at 12.2 percent. Today’s UV index is 10, don’t forget the sunscreen if you need it! Today’s winds are traveling east-southeast at a speed of 6 MPH. At the end of the day don’t miss the sunset at 2:30 AM.
