If you planning to travel to Ben Reifel Visitor Center, Interior, 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 11:44 AM. The temperature feels like 47.2 with a humidity level of 87 so dress accordingly. Cloud coverage is 86 percent with visibility at 8 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling northwest at a speed of 23 MPH. At the end of the day don’t miss the sunset at 1:47 AM.