Here are the lowest temperatures across Colorado on Tuesday morning, according to the National Weather Service.

Still, several Colorado school districts will start late on Tuesday as the state waits out the last of subzero temperatures. Denver, Jefferson County, Aurora, Littleton, St. Vrain Valley and Weld, among others, are all on a two-hour delay.

More than 500 flights were delayed or canceled at Denver International Airport on Monday as a polar vortex continued to freeze metro Denver.

Colorado will see its coldest temperatures of the winter as a mass of cold air descends on the state from the Artic. But despite the bitter cold, this weather event is not a polar vortex.

The Arctic air mass will be in Colorado Friday afternoon, but the effects of the polar vortex won't be fully felt until after the sun goes down. Snow will come into the state's high country in two ...

The town of 1,400 hardy souls takes pride in the fact that because of its inversion at the base of two mountain ranges, it's often the coldest place in the nation. Fraser’s annual average temperature is 34.8 degrees Fahrenheit and the growing season is only four to seven days per year.

The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is forecast to provide frigid weather as it continues to bring sub-zero temperatures to the Midwest, Mid-Atlantic and plunge deep into the South.

This cold was certainly extraordinary, but the polar vortex event of January 2019 brought life in the northern and central United States to a frozen halt. At that time in our area, the coldest actual temperature was recorded at Preston,

A winter storm sweeping through the U.S. South on Tuesday was dumping snow at levels millions of residents haven't seen before. Moisture from the Gulf of Mexico was combining with a low-pressure

An arctic blast moved into Colorado on Friday and stayed until Tuesday morning, bringing some of the coldest temperatures of the season. Hundreds of flights at the Denver International Airport were delayed and canceled,

Some areas of the U.S. may see temperatures as low as -20 or -30 degrees early next week as arctic air from Siberia rolls in.