If you planning to travel to Buena Vista Lake, Decatur, 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 12:15 PM. The temperature feels like 42.35 with a humidity level of 55 so dress accordingly. Cloud coverage is 1 percent with visibility at 14.9 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling west-northwest at a speed of 14 MPH. At the end of the day don’t miss the sunset at 10:32 PM.