Despite the sunshine, Tuesday morning had bone-chilling temperatures in the teens and 20s below zero and wind chills at 25 to 40 degrees below zero. Afternoon highs will reach around 2 degrees in the Twin Cities metro, though it will feel much colder with subzero wind chills.

Dangerously cold air that has settled across the Upper Midwest this week has prompted some school districts in Minnesota — including Minneapolis and St. Paul — to cancel classes on Tuesday, Feb. 18.