If you planning to travel to Louisiana Purchase State Park, Holly Grove, 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 11:30 AM. The temperature feels like 59.7 with a humidity level of 52 so dress accordingly. Cloud coverage is 6 percent with visibility at 14 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 4 MPH. At the end of the day don’t miss the sunset at 12:37 AM.