If you planning to travel to Yellowstone Big Gun Fun, West Yellowstone, Montana, 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 2:59 PM. The temperature feels like 12.65 with a humidity level of 87 so dress accordingly. Cloud coverage is 88 percent with visibility at 6 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling southwest at a speed of 11 MPH. At the end of the day don’t miss the sunset at 11:51 PM.