If you planning to travel to Fort Smith National Historic Site, Fort Smith, Arkansas, 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 12:46 PM. The temperature feels like 62.15 with a humidity level of 82 so dress accordingly. Cloud coverage is 86 percent with visibility at 9 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling east at a speed of 13 MPH. At the end of the day don’t miss the sunset at 11:15 PM.