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 1:44 PM. The temperature feels like 1.0500000000000007 with a humidity level of 62 so dress accordingly. Cloud coverage is 8 percent with visibility at 13.2 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 6 MPH. At the end of the day don’t miss the sunset at 12:31 AM.