If you planning to travel to Black Rock Mountain State Park, Clayton, Georgia, 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 12:09 PM. The temperature feels like 49.55 with a humidity level of 80 so dress accordingly. Cloud coverage is 8 percent with visibility at 12.4 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 3 MPH. At the end of the day don’t miss the sunset at 10:27 PM.