Boston is bracing for a muggy Wednesday, with temperatures forecasted to rise into the upper 80s during the day. The National Weather Service indicates that the evening may bring a slight chance of showers, with temperatures dropping to the low 60s overnight. Thursday will see a continuation of partly sunny skies, but showers may develop in the late morning, with highs in the low 70s. As the week progresses, temperatures will dip into the low 50s Thursday night, rising again to the low 70s on Friday, maintaining partly sunny conditions. However, the weekend will kick off with a significant change, as rain is predicted to begin around 2 a.m. on Saturday, coinciding with lows in the low 50s. Saturday's temperatures are expected to reach the low 60s, with persistent showers likely throughout the day, tapering off around noon. By Sunday morning, conditions are expected to improve with clearer skies, marking the end of the rainy spell.