Warmer conditions are expected to make a return to the Tennessee Valley this week, bringing with them highs that could reach the upper 80s by Saturday, along with a chance of scattered rain. According to the National Weather Service in Huntsville, residents can anticipate a gradual increase in temperatures, starting from the upper 70s on Wednesday and potentially climbing into the low 90s by the weekend. Overnight lows are predicted to remain relatively mild, hovering in the upper 50s to lower 60s.