If you planning to travel to Mellette House, Watertown, 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 1:34 PM. The temperature feels like 11.649999999999999 with a humidity level of 93 so dress accordingly. Cloud coverage is 68 percent with visibility at 8.9 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 12 MPH. At the end of the day don’t miss the sunset at 10:52 PM.