The weather rollercoaster will continue to Middle Tennessee. Expect unseasonably warm weather through Saturday, with near record highs. Records from the 1800's are in jeopardy of being broken. The warm spell will be short lived with an expected cooling trend by early next week, lasting for several weeks. Some very cold temperatures could invade the midstate by late next week, tumbling temperatures 40-degrees or more. While you may not need a jacket for the next few days, a word to the wise. Keep you heavy coat handy.