Saturday Temperatures Break Records In Pennsylvania

Record-breaking cold temperatures were reported this morning in Pennsylvania.

The low temperature in Harrisburg was 21 degrees, breaking the previous record of 23 degrees from 1954. In Pittsburgh, where it was 18 degrees this morning, the temperature broke the previous record of 21 degrees set in 1973. The Wilkes-Barre area tied its record low of 18 degrees.

On Saturday, high temperatures will only be in the mid-30s — about 20 degrees below average for this time of year.

These temperatures are more like January then early November, but how long will they last?

Luckily, not too much longer.

According to the National Weather Service, the high will reach the upper 40s in Trenton on Sunday. Highs in the 50s are expected throughout next week. However, forecasters warn of another cold blast late in the week into the following week.

Signs are pointing toward a displacement of the "polar vortex," accompanied by a significant storm with rain, snow and wind impacting the Northeast during the days prior to Thanksgiving, according to AccuWeather.

"There is the risk for the first major snowstorm somewhere in the Northeast during the period from Saturday, Nov. 18, to Tuesday, Nov. 22," AccuWeather Lead Long-Range Meteorologist Paul Pastelok said in a release.

READ MORE: First 'Major' Snow In Northeast Could Come Before Thanksgiving

Here is this week's forecast:

Saturday: Sunny, with a high near 39. Northeast wind 3 to 6 mph.

Tonight: Partly cloudy, with a low around 25. Light and variable wind.

Sunday: Partly sunny, with a high near 48. Calm wind.

Sunday Night: A chance of showers, mainly after midnight. Mostly cloudy, with a low around 35. Light north wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Monday: A chance of showers. Mostly cloudy, with a high near 51. North wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday Night: Partly cloudy, with a low around 36.

Tuesday: Mostly sunny, with a high near 52.

Tuesday Night: Partly cloudy, with a low around 35.

Wednesday: Mostly sunny, with a high near 53.

Wednesday Night: Mostly cloudy, with a low around 40.

Thursday: Mostly sunny, with a high near 57.

Thursday Night: Partly cloudy, with a low around 38.