forecast December 20, 2019 4:37 pm Mostly Clear and Cold Friday Evening 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 3:24 Forecast: Cloudy to rainy on Sunday 3:43 Look out for showers this afternoon in Boston 3:27 A lot cooler in New England Friday 3:02 Dry and cooler in our region, with temps in the mid-50s 3:11 The weather's great, but the wheels come off the forecast by the weekend