Temperatures fell below freezing at about 5 p.m. on Sunday and are expected to stay there until around 11 a.m. Friday, putting Denver on track to see nearly 115 hours of frigid temperatures.

However, wind chill could make it feel like temperatures are subzero in some spots. A Cold Weather Advisory and an Extreme Cold Warning are in effect through 11 a.m. Thursday. Interstate 70 over Vail Pass closed to travelers starting at 9 a.

Sunday morning will start with chilly temperatures, warming up to 38 degrees with sunny skies. Light and variable winds will be expected today, with temperatures reaching upper 30s on Monday.