If you planning to travel to Roaring Mountain, Yellowstone National Park, Wyoming, 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 2:22 PM. The temperature feels like 5.7 with a humidity level of 90 so dress accordingly. Cloud coverage is 81 percent with visibility at 10.1 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 13 MPH. At the end of the day don’t miss the sunset at 11:49 PM.