As fast as it arrived, the cold will be leaving our region just as fast.
With temperatures hovering below the -20C mark over the last couple of days, a complete reversal is expected as the week goes on.
However, Environment Canada Meteorologist Geoff Coulson says while December saw constant mild temperatures, January temperatures will be fluctuating.
Also, a weather system moving up from the American south will make for a messy weekend in the Barrie area with showers and flurries.
Temperatures will gradually rise to around freezing for the remainder of the week – eventually reaching a daytime high of plus 5 this Saturday.