The official start to winter is a week away, but the area is being treated to another taste of midwinter lows today and Wednesday.
Today's morning lows in York County were expected to drop into the teens and with afternoon highs barely cresting the freezing mark.
Wind chills were expected to dip into the single digits, according to the National Weather Service.
An arctic air mass moving southeast over York County will result in a high of 33 degrees today, after a morning low of 15 and a wind chill of 5 degrees. Winds will range from 10 to 14 mph, said John Tomko, a meteorologist with the National Weather Service.
It's the same high-pressure system that dumped snow on the upper Midwest, causing the roof to cave in at the Minnesota Vikings' stadium early Sunday.
Slightly warmer temperatures are expected Wednesday, with the high around 40.Temperatures will continue to rise toward the end of the week before falling again with the arrival of another cold front.
Skies will be clear until late Wednesday, when there's a slight chance of a wintry mix of snow and sleet by nightfall. Freezing rain could follow on Thursday morning, Tomko said.
Weather officials urge people, especially those traveling, to watch the forecast and keep an eye on any warnings.
"Any amount of ice on the roads or sidewalks could be a problem," Tomko said.
Predicted temperatures today lie about 20 degrees below what's normal in Rock Hill this time of year, he said.
Charlotte just had its coldest first 12 days of December in more than 130 years, with the overnight low falling to 12 degrees on Dec. 7.