If you planning to travel to Mammoth Spring State Park, Mammoth Spring, 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 11:43 AM. The temperature feels like 60.45 with a humidity level of 55 so dress accordingly. Cloud coverage is 2 percent with visibility at 14.7 percent. Today’s UV index is 8, don’t forget the sunscreen if you need it! Today’s winds are traveling northeast at a speed of 4 MPH. At the end of the day don’t miss the sunset at 12:23 AM.