If you planning to travel to Old Spanish Treasure Cave, Sulphur Springs, 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 12:40 PM. The temperature feels like 55.75 with a humidity level of 74 so dress accordingly. Cloud coverage is 28 percent with visibility at 12.2 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 7 MPH. At the end of the day don’t miss the sunset at 11:21 PM.