An Arctic front will advance through Colorado by Monday afternoon, setting the stage for a colder and more active couple of days. High temperatures on Monday are predicted to warm into the mid- to upper-30s.

Denver is forecast to see up to 65 hours of below-freezing temperatures this week as a new wave of arctic air and snow hits the city, according to the National Weather Service.

Arctic air moves into the Fort Collins area this week with substantial snowfall totals possible along with below-zero low temperatures.