WDEF-TV News 12 Tennessee River Valley weather forecast Overnight: Mostly cloudy, cold. Snow in the higher elevations of the Cumberland Plateau. Lows: low 30’s. Winds: N @ 5-15 MPH, gusts 20-25. Saturday: Sunshine, cold, dry. Highs: low/mid 40’s. Winds: N @ 5-10 MPH. Overnight: Mostly clear, dry, cold. Lows: mid/high 20’s. Winds: N @ 5…… MORE