Temperatures will continue to plummet in the Harrisburg, Pa., area through Tuesday morning.
Some untreated wet areas will freeze during the Monday evening rush hour, as temperatures in the wake of an Arctic cold front will plunge into the 20s.
Temperatures Tuesday morning, compared to Monday morning will feel 50 to 60 degrees lower.
A record-breaking low of 1 degree is forecast Tuesday morning. The old record is 5 degrees set during the World War II era, in 1942. The extreme cold will make it dangerous for outdoor activities.
Tuesday will continue to be very cold with a high in the single digits.
A period of ice is possible Thursday night, but temperatures will rise into 40s on Friday and Saturday.
Tune in to AccuWeather Live Mornings every weekday at 7 a.m. EST. We will be talking the brutal cold and when the next warmup is in store.
A break from extreme heat and humidity is on the way this week across much of the Southeast, but Florida will stay hot.
Umbrellas and raincoats will be put to good use across the Midwest this week as a stormy weather pattern sets up over the region.
The combination of excessive heat and dry thunderstorms in many areas will add to the wildfire threat in the western part of United States and Canada through much of July.
While heat has already begun across Spain and Portugal, the hottest conditions of the year will spread across much of Europe this week.
The 2015 Wimbledon Championships began on Monday, June 29, with dry, comfortable conditions, however the highest temperatures of the year will impact play during the first week of the tournament.
Six years after Michael Jackson died of cardiac arrest, the King of Pop made an unusual appearance in an unlikely place during a June 23 lightning storm.
New York, NY (1992)
No 90-degree readings during June; the first June without any 90-degree heat since 1985.
Vernon Hill, UT (1994)
Wind gust to 84 mph.
Boston, MA (1999)
No measurable rain the entire month of June (normal is 3.09").