(CNN) The arctic cold should loosen up soon, but don't pack away your earmuffs yet.

An ice storm is expected to blanket Northeastern and Midwestern cities Sunday and Monday as warmer air begins to move through the Midwest and into the East, CNN meteorologists said Saturday.

Ice could accumulate in cities such as Chicago, Cincinnati, Cleveland, Washington, New York and Atlanta, they said. Chicago has an 80% chance of snow Sunday night, whereas Boston has a 20% chance of snow showers Monday, the National Weather Service predicted.

By the middle of the week, things should really warm up, with normal and even above-normal temperatures prevailing.

Saturday, weary emergency crews and homeowners ventured into the cold to clean up after a "bomb cyclone" rumbled across the Northeast.

Whipping winds of 20 to 30 mph and below-average temperatures caused headaches such as more power outages and flight cancellations.

An abandoned car sits amid slush and ice in Revere, Massachusetts.

"Suffice to say, it will be a brutally cold weekend," the National Weather Service said. "But some relief is in sight heading into early next week."

The misery extended from North to South.

This week's storm dumped more than a foot of snow across 10 states, deluged streets in Massachusetts with icy water and is now bringing extremely strong northwest winds and frigid arctic air to the United States.

In Scituate, Massachusetts, the nor'easter damaged cars and structures and left boulders and sand on flooded roads, CNN affiliate WBZ reported. Throughout the region, stories of dramatic rescues emerged, and residents pondered the repairs they need to make.

"I've got some work to do in the spring," said Mark Bramblett, who evacuated his home in Scituate.

Temperatures plunge below average

At airports in the United States, over 450 flights were canceled Saturday, compared to around 1,500 on Friday, according to the tracking site Flightaware.com. More than 3,800 flights were delayed Saturday.

Passengers were frustrated and angry by hours-long delays at JFK International Airport in New York.

Alban Denoyel, his pregnant wife and their 3-year-old flew in from Paris and had to wait several hours to deplane and several more hours to claim their bags, Denoyel said on Twitter. They landed at 10 p.m. Friday and left at 9 a.m. Saturday.

Chaos at #JFK. Had to wait 6 hours post landing to be able to exit the plane, and now been waiting bagages for 3 hours, and told it might take another 4 to come. Left home in Paris 24 hours ago 😥 pic.twitter.com/f4pM4M7OL5 — alban denoyel (@albn) January 6, 2018

Mark Kirby told CNN he didn't know when he'd get out of JFK.

"I was going to the Bahamas from London, and we were supposed to be here for an hour and 50 minutes and we were stuck on the runway for three hours and getting our bags for about two hours," he said. "And now I don't think the flight will be until probably tomorrow now."

The congestion at JFK was starting to clear Saturday night, FAA spokesman Greg Martin said. Domestic terminals had nearly returned to normal operations, he said, but the FAA would work with airlines to limit the arrival of international flights until adequate gates were available.

In Charleston, South Carolina, the airport reopened Saturday afternoon after being shut for three days. Five inches of snow and ice fell at the airport, which lacks ice and snow removal equipment.

Photos: Frigid temperatures strike US Photos: Frigid temperatures strike US A pedestrian walks by a statue of George Washington in Boston's Public Garden on Friday, January 5, the morning after a massive storm. Blasts of arctic air have brought weather-related deaths, record low temperatures and historic amounts of snowfall to parts of the United States. Hide Caption 1 of 32 Photos: Frigid temperatures strike US Apartment buildings in New York City poke out from the snow on January 5. Hide Caption 2 of 32 Photos: Frigid temperatures strike US Mollie Lane carries a shovelful of snow down a street while digging her car out in Boston on January 5. Hide Caption 3 of 32 Photos: Frigid temperatures strike US A jogger is bundled up against the cold near the Chicago River on Thursday, January 4, in Chicago. Hide Caption 4 of 32 Photos: Frigid temperatures strike US Workers on January 4 place sandbags in front of the Aquarium subway station to protect against flooding from Boston Harbor in Boston. Hide Caption 5 of 32 Photos: Frigid temperatures strike US A thin layer of ice covers ornamental plants on January 4 in Plant City, Florida. Temperatures in central Florida dipped to below freezing. Growers spray water on the plants to help protect them from extreme cold. Hide Caption 6 of 32 Photos: Frigid temperatures strike US Rebecca Hollis drags her suitcases through New York's Times Square on January 4. Hide Caption 7 of 32 Photos: Frigid temperatures strike US A man walks through the streets of Boston as snow begins on January 4. The brutal cold comes after a "bomb cyclone" dumped more than a foot of snow across eight states. Hide Caption 8 of 32 Photos: Frigid temperatures strike US A seagull takes flight in Hull, Massachusetts, on January 4. Hide Caption 9 of 32 Photos: Frigid temperatures strike US Omar Elkhalidi scrapes ice off his windshield in Savannah, Georgia, on January 3. Few motorists ventured out in freezing rain that coated bridges and ramps with ice, forcing police to close roads and highways. Hide Caption 10 of 32 Photos: Frigid temperatures strike US A rare snowfall leaves a street virtually deserted in downtown Charleston, South Carolina, on Wednesday, January 3. Hide Caption 11 of 32 Photos: Frigid temperatures strike US A tree and rowhouse are partially covered by ice after a water main break in Catonsville, Maryland, on January 3. Hide Caption 12 of 32 Photos: Frigid temperatures strike US A New Jersey State Police boat maneuvers through ice on the Delaware River on January 3. Hide Caption 13 of 32 Photos: Frigid temperatures strike US A check-in area stands empty at Boston's Logan International Airport on January 3. Thousands of flights have been canceled across the country. Hide Caption 14 of 32 Photos: Frigid temperatures strike US A light layer of snow dusts oak trees and Spanish moss in Savannah, Georgia, on January 3. Hide Caption 15 of 32 Photos: Frigid temperatures strike US A woman in Chicago walks to work in sub-zero temperatures on Tuesday, January 2. Hide Caption 16 of 32 Photos: Frigid temperatures strike US Icicles form on a outdoor string of lights in Houston on January 2. Hide Caption 17 of 32 Photos: Frigid temperatures strike US Firefighter Bobby Lehman, with his helmet and gear caked in ice, tries to thaw out after battling a fire in Nahant, Masschusetts, on Monday, January 1. Hide Caption 18 of 32 Photos: Frigid temperatures strike US A barge cuts through ice on the Ohio River as it passes under the West End Bridge, along the North Shore district in Pittsburgh on January 1. Hide Caption 19 of 32 Photos: Frigid temperatures strike US Two photographers are silhouetted against the frozen surface of the Reflecting Pool in Washington as they capture the first sunrise of the new year. Hide Caption 20 of 32 Photos: Frigid temperatures strike US Visitors view Niagara Falls in New York on Sunday, December 31. Hide Caption 21 of 32 Photos: Frigid temperatures strike US The Cloud Gate sculpture is blanketed with snow in Chicago's Millennium Park on December 31. Hide Caption 22 of 32 Photos: Frigid temperatures strike US Samantha Dement-Graham shovels her neighbor's sidewalk in Dubuque, Iowa, on Friday, December 29. Hide Caption 23 of 32 Photos: Frigid temperatures strike US A man in Erie, Pennsylvania, walks with his groceries in a cart on December 29. Hide Caption 24 of 32 Photos: Frigid temperatures strike US Jose Nieto uses a leaf blower to clear snow from the steps of a sick neighbor's house in Bloomington, Illinois, on December 29. Hide Caption 25 of 32 Photos: Frigid temperatures strike US A man digs his car out in his driveway in Erie, Pennsylvania, on December 29. Hide Caption 26 of 32 Photos: Frigid temperatures strike US People walk through a frigid New York City on Thursday, December 28. Hide Caption 27 of 32 Photos: Frigid temperatures strike US Karlee Winter and her brother Samuel Espinoza shovel snow from their neighbor's sidewalk in Dubuque, Iowa, on December 28. Hide Caption 28 of 32 Photos: Frigid temperatures strike US Two women take a selfie in front of a partially frozen fountain in New York City on Wednesday, December 27. Hide Caption 29 of 32 Photos: Frigid temperatures strike US People try to keep warm in New York's Times Square on December 27. Hide Caption 30 of 32 Photos: Frigid temperatures strike US A person walks by a steam vent in Boston on December 27. Hide Caption 31 of 32 Photos: Frigid temperatures strike US Smoke rises from Chicago skyscrapers on Tuesday, December 26. 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"Expected highs will be in the single digits across the lower Great Lakes down into Ohio. Meanwhile, readings in the teens are likely from Washington, D.C., up to New York City with single digits up into coastal New England," the weather service said.

"Based on the latest forecasts, overnight temperatures should go below zero degrees over most of New England with perhaps even some 5 to 10 degree numbers all the way into North Carolina."

The wind chill factor

Millions were experiencing frigid wind chills this weekend, from the Great Lakes to New England.

Wind chill is the perceived temperature that people and animals feel when exposed to the elements. Or as meteorologists say, it's the "feels-like" temperature.

"As wind increases in speed, it increases the rate of heat loss on your body, making you feel colder than it actually is," CNN meteorologist Derek Van Dam said.

Wind chill is calculated by the rate the body loses heat due to speed winds and cold temperatures.

Saturday's cold snap has been called dangerous because it will make it easier for people to experience hypothermia and frostbite.

If the wind chills range from 15 to 25 degrees below zero, as expected Saturday in much of western and northern Pennsylvania, the onset of frostbite can begin within 10 minutes.

And when the wind chill registers below minus 50, it would take only five minutes for exposed skin to develop frostbite.

Deadly conditions

At least 22 people have died this week because of severe weather, officials said.

Six deaths were reported in Wisconsin, four in Texas, three in North Carolina, two in Virginia and one each in Ohio, Massachusetts, Michigan, Missouri, North Dakota, New York and South Carolina.

A man shoveling snow in Babylon, on New York's Long Island, had a heart attack and died Thursday during the storm, Suffolk County spokesman Derek Poppe told CNN on Saturday.

In Arlington, Massachusetts, a state Water Resources Authority employee was found unconscious in a snow bank while doing snow removal work Friday, Arlington Police Chief Fred Ryan said. The man, 60, was taken to a local hospital where he was pronounced dead, Ryan said.

In Chesterfield, Virginia, a 9-year-old girl died Thursday when she rode her sled down a driveway into the path of a pickup, police Lt. Dennis S. Proffitt said.

A 64-year-old man died of hypothermia in Akron, Ohio. A Meals on Wheels driver found his body lying in front of his wheelchair on the porch of the man's home.

In South Carolina, a man was killed after his pickup slid on icy roads, hitting a median and several trees, according to the Kershaw County coroner.

Emerging from the storm

The storm heaped plenty of misery across New England. Waves from the sea washed into Boston streets. And the tide in the city -- 15.16 feet -- broke the record set during the blizzard of 1978, the National Weather Service said.

A firefighter wades through floodwaters from Boston Harbor this week on Long Wharf in Boston.

The storm flooded streets in some communities in coastal Massachusetts, turning roads into slushy rivers. Firefighters and the National Guard scrambled to rescue dozens of residents stranded by freezing water pushing in from the Atlantic. First responders braved the frigid waters using rubber rescue boats and high-water vehicles.