If you planning to travel to Harrison Bay State Park, Harrison, Tennessee, 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 12:04 PM. The temperature feels like 56.7 with a humidity level of 80 so dress accordingly. Cloud coverage is 9 percent with visibility at 11.7 percent. Today’s UV index is 5, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 6 MPH. At the end of the day don’t miss the sunset at 10:41 PM.