The National Weather Service in Knoxville has forecasted a bit of an atmospheric rollercoaster for the region this week, with weather patterns shifting from overcast mornings to clear skies and then back to potential rain and snow showers toward the weekend. As reported by NWS in Knoxville, the city woke up to overcast conditions on January 2nd, but residents can expect the clouds to gradually clear up, with temperatures edging to a high near 43. The calm before the storm, so to speak.