In Indiana, around zero degrees was likely, the map showed, with temperatures of around three degrees possible in Northern Maine. Northern Georgia would see temperatures around 16, and in Colorado, the map showed that some areas would see -9.

A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans. See maps of the arctic blast.

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need to know.

Houston has been experiencing below-average temperatures as a polar vortex ushers in cooler conditions across the state.

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to millions.

Marylanders are bracing for the upcoming polar vortex, expected to bring temperatures into the single digits early this week. And state workers are out and getting ready for the freezing temperatures.

President-elect Donald Trump's second inauguration will mark the coldest presidential ceremony in more than 40 years.

In the final hours of his presidency, President Joe Biden issued a series of last-minute pardons for Gen. Mark Milley, Dr. Anthony Fauci and the members and staff of the Jan. 6 Committee. Former RNC chair Ronna McDaniel says the pardons are a sign Biden “believes there is culpability.” #JoeBiden #Pardons #InaugurationDay

The polar vortex is expected to reach the Utah-Idaho border sometime in the late afternoon and evening Friday as it continues to move south. As it moves through parts of the state, it will produce small snow showers, bringing more snow to the region before drier conditions return.

Once the snow starts to come in, the temperature will essentially drop like a rock,” Fox Forecast Center Meteorologist Marissa Lautenbacher told The Post.

These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary between Arctic and more temperate air – dips deeply southward, bringing the cold Arctic air to regions that don’t often experience it.

A brutal polar vortex is set to bury the Big Apple in snow Sunday and then deliver deadly single-digit temperatures that will feel like 15 degrees below zero.