WDEF-TV News 12 Tennessee River Valley weather forecast Overnight: A few clouds. Cooler. Lows: high 40’s to low 50’s. Winds: N @ 5 MPH. Wednesday: Mostly sunny. Breezy at times. More Clouds Into Afternoon. Stray afternoon showers. Highs: mid 60’s. Winds: SE @ 5-10, gusts 20. Overnight: Mostly cloudy. Cool. Widespread showers. Lows: high 40’s.…… MORE