Boston December 20, 2017 11:40 pm Weather Forecast: Sunny Morning Wednesday night: Clearing and colder. Low to mid 20s. Thursday: Sun gives way to afternoon clouds. Low 30s. Friday: Light snow by mid AM turning to ice/rain late. Upper 30s. US & World Videos 2:38 Summer-like temperatures on the way for much of the workweek 2:17 Seasonable temperatures today in Boston 2:29 Mild air returns to our region today, then major warm up by midweek 4:03 Patchy fog and some showers on Sunday morning 4:00 Overcast Saturday with scattered showers