If you planning to travel to Rushmore Tramway Adventures, 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 12:54 PM. The temperature feels like 32.900000000000006 with a humidity level of 39 so dress accordingly. Cloud coverage is 9 percent with visibility at 14.9 percent. Today’s UV index is 6, don’t forget the sunscreen if you need it! Today’s winds are traveling west-northwest at a speed of 14 MPH. At the end of the day don’t miss the sunset at 1:08 AM.