If you planning to travel to Yellowtail Dam Visitor Center, Fort Smith, 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 2:47 PM. The temperature feels like 34.7 with a humidity level of 60 so dress accordingly. Cloud coverage is 49 percent with visibility at 13.7 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 21 MPH. At the end of the day don’t miss the sunset at 11:31 PM.