I have lived in Tennessee all of my life and one thing you can count on is the weather is never going to be the same from one weekend to another. Just two weeks ago I went camping and the temps got down into the low thirties that night and dropped down to 31 degrees at daybreak.
Fast forward two weeks and headed out again and check the forecast as you should before you head out yet going to be another beautiful weekend with one exception lows in the 50s, so once again adjust gear for the temps and be ready for much warmer weather.
The most important thing is to have the gear for the weather, a warmer sleeping bag for cold weather, and a cooler sleeping bag for warm weather. Also, go from layers of clothing to a lot fewer layers of clothing. You even can change your food between the two campouts. When it is cold you want foods that will warm the body like chili or a stew. In warm weather, I am more likely to fix a burger or something liter like fajitas. So always planing my sleeping bag, clothes, and food too the weather. Bring it on Tennessee, I got you either way.
Mid Tn Outdoors 