While it looks like Christmas Day will be decidedly dreary (at least in terms of the weather), the Vancouver weather forecast calls for frigid overnight lows and the possibility of flurries this week.
Starting on Thursday, Dec. 24, Environment Canada calls for sunshine and a high of 5°C during the day followed by partly cloudy skies at night. Following this, Christmas Day is expected to see periods of rain and a slightly milder high of 7°C, with temperatures dipping down to 4°C overnight.
Saturday's forecast calls for a 40 per cent chance of showers during the day, but the evening is expected to be clear. Additionally, temperatures are expected to dip down to 1°C. Monday's forecast calls for a 30 per cent chance of showers during the day and into the night, with overnight lows dipping down to freezing.
On Tuesday, the forecast calls for a 60 per cent chance of showers during the day and the possibility of flurries at night.
Metro Vancouver Weather Forecast

Are you still dreaming of a white Christmas?
On Monday, Dec. 22, Environment Canada meteorologist Armel Castellan told Vancouver Is Awesome in a phone interview that Vancouver isn't likely to see snow on the big day, despite seeing some accumulation of snow Monday.
Monday's snowy weather event was somewhat of an anomaly, and it isn't caused by arctic air. Instead, Castellan says it's a combination of heavy precipitation and a deepening Pacific low that made its way across Washington State.