A sharp southward shift in the US jet stream is making its presence known in New York City and the rest of the Northeast throughout March's final week - with the unseasonable cold snap set to break record-low temperatures for the month that will reach levels similar to the heart of winter.
An arctic cold front coming from Canada over the weekend is sending a wave of freezing winds over the city, according to AccuWeather meteorologists, with temperatures ranging from 24 degrees to 47 degrees Fahrenheit from Monday until Thursday.
Freezing conditions in New York City began setting in Sunday night with lows reaching 28 degrees, according to the National Weather Service's forecast.
Monday's high will reach 33 degrees at most, with a low of 24 degrees, according to the forecast, as office goers will feel the brunt of the freeze in the morning.
Tuesday won't see much improvement, but temperatures will climb to the the low 40s, with a high of 43 and a low of 28 degrees - and sunny skies expected throughout the day.
Meteorologists say the frigid temperatures will likely hold through Wednesday, with highs in the early 40s.
Thursday temperatures are expected to reach 70 degrees - a welcome respite for New Yorkers as the cold front breaks.
An arctic front arrived in New York City on Sunday night into Monday morning from Canada, potentially setting one of the coldest days in March in the Big Apple's history on March 28.
The freeze is expected to stay in the region until Wednesday evening
The cold front will cause plummeting temperatures in several parts of the Northeast, including New York City, upstate New York, Massachusetts, New Jersey and parts of Pennsylvania
However, the improvement in weather conditions will come with high chances of thunderstorms for the tri-state area this upcoming weekend.
On average, temperatures in the Big Apple have remained in the 50s throughout most of the month as the city felt the first effects of Spring at the beginning of March.
Boston is also expected to break its record-lowest March 28 temperature - 33 degrees, set in March 1893 - on Monday with a low of 20 degrees and a high of 31.
Tuesday should be a lot warmer in Boston with a low of 25 degrees and a high of 40, while Wednesday will approach more typical spring temperatures in the high 30s and low 40s.
Upstate and Western New York will also feel the brunt of the vortex too, with snow on Monday and a low of 18 degrees in Buffalo.
Tuesday should be much warmer in the region, with clear skies and a high of 34.
The cold front is predicted to recede there on Wednesday, with temperatures predicted to be in the mid-to-high 40s.
Philadelphia will experience similar conditions to New York City throughout the week, with cloudy skies and temperatures between 22 and 33 degrees on Monday.
Tuesday will be sunny with a low of 27 degrees and a high of 44.
Temperatures in the city of Brotherly Love, however, will be slightly higher on Wednesday than in the Big Apple, with a high of 51 and kooora4live a low of 45 degrees, although it will remain cloudy in the area.
Although snow is not expected in the Big Apple this week, temperatures there will go as low as 24 degrees before gradually reaching the 40s on Tuesday and Wednesday.