If you planning to travel to Watiki Water Park, Rapid City, 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 2:21 PM. The temperature feels like 24.799999999999997 with a humidity level of 72 so dress accordingly. Cloud coverage is 54 percent with visibility at 13 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 9 MPH. At the end of the day don’t miss the sunset at 11:16 PM.