forecast December 20, 2019 12:30 pm Clear and Chilly Friday Friday evening: Clear and chilly. Temperatures in the upper 20s. Friday night: Mostly clear and cold. Lows in the teens to near 20. Saturday: Mix of sun and clouds. Highs in the 30s. Sunday: A few clouds. Highs in the 40s. US & World Videos 0:21 Man arrested in Centerville stabbing that sent victim to hospital 20:21 Karen Read trial: Defense calls Canton police lieutenant's credibility into question 1:59 Car crashes over wall in Westford 2:14 MIT suspends student protesters 2:06 Here's what's inside the Mass. Senate's proposed budget