Actual high temperatures will only reach the upper teens to around 20 degrees in the Boston area Tuesday, according to Dave Epstein.

A potent surge of Arctic air starts settling in Monday evening as a massive dip in the jet stream pulls in frigid air across the entire eastern half of the country. Temperatures are set to drop as low as 20 degrees below average through Thursday with the highs only reaching the teens and some lows even plunging below zero.

TONIGHT: FIRST ALERT. Dangerous cold as air temperatures will be on either side of 0°. Wind chill values will be in the teens & 20s below 0°. NW winds will gust to 25 mph.

A large part of the U.S. is getting hit with another Arctic blast, adding to an already cold January 2025. Forecasters expect temperatures to drop below zero in several states, and to plunge to more than minus 30 in parts of the Dakotas, Minnesota and Wisconsin. More winter storms are expected alongside that cold polar air.

A blast of Arctic air is bringing cold weather to New England over the next several days. Wind chill values in the mornings are going to be 0 to 15 below, with the coldest areas across the hillier terrain of Worcester County and the Berkshires.

BOSTON - The harshest week of winter thus far has begun, kicking off with several inches of snow in much of Massachusetts. A widespread 4-to-8 inches of snow fell across most of southern New England by early Monday.

Odds are you spent the recent holidays curled up in the warmest part of your home, away from some of the coldest weather Northeast Ohio has seen in years. Expect much of the same Tuesday and Wednesday.

The polar vortex has brought Arctic cold to the New York City area—and below-freezing wind chills are in the forecast for the entire week.

Residents in the DMV are being advised to stay inside as an Arctic blast may make it feel like it is below zero degrees in some areas, forecasters say. Beginning at midnight and lasting through 11 a.m.