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 1:52 PM. The temperature feels like 31.5 with a humidity level of 80 so dress accordingly. Cloud coverage is 41 percent with visibility at 8 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 0 MPH. At the end of the day don’t miss the sunset at 12:23 AM.