If you planning to travel to National Park 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 2:20 PM. The temperature feels like 25.25 with a humidity level of 84 so dress accordingly. Cloud coverage is 80 percent with visibility at 13.7 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling northeast at a speed of 2 MPH. At the end of the day don’t miss the sunset at 11:55 PM.