Currently in Boston — December 21st, 2022

The weather, currently.

Wind and rain for the conclusion of the work week.

Sunshine returns Wednesday with temperatures near 40°F in the afternoon and light winds. It will continue to be dry through Thursday, although clouds will raise temperatures into the forties. A strong cold front will cross the area Friday evening, proceeded by heavy rain and wind. There could be scattered power outages because of the strong wind as well. Temperatures will reach near 60°F Friday afternoon. There may also be a flash freeze Friday night as temperatures crashed towards 20°F by morning. Expect plenty of sunshine and cold temperatures for Christmas Eve and Christmas Day with highs in the upper 20s.

Dave Epstein

What you need to know, currently.

There will be arctic air and some snow coming to the U.S. and Canada on Tuesday.

The countries will experience frigid air on both Wednesday and Thursday. Many cities are on Wind Chill Watch or Wind Chill advisory, such as Albuquerque, New Mexico; Odessa, Texas; San Angelo, Texas; Memphis, Tennessee; and Little Rock Arkansas, to name a few. Other winter hazards were in effect in both Georgia and Montana as the cold continues.

A storm is expected to become a massive bomb cyclone between Wednesday and Friday. It will bring heavy snow and blizzard conditions across the Plains, Great Lakes, Ohio Valley, Northeast and some parts of the mid-Atlantic. However, Chicago, northern Indiana and western Michigan may face the brunt of the storm. Widespread power outages from winds are likely across the Midwest, Mid-Atlantic, and New England. The storm is also dangerous to energy infrastructures that are vulnerable to extreme cold and strong winds, such as Texas’ power grid.

Amid the holiday season, multiple international air travel hubs along with the millions of people traveling this time of year will likely be affected by the storm, too. Many flights will likely be delayed or canceled this Christmas weekend as well.

Mount Holly’s National Weather Service pointed out that current temperatures forecast for Christmas Eve and Christmas Day in Philadelphia would be the coldest that two day period has seen since 1989.

Many other areas will experience wind with this low pressure system as well, making temperatures feel anywhere from -20 to -40 degrees F (-6 to 4 degrees C) this week. At 15 degrees below zero with even a little bit of wind, frostbite is possible within 15 minutes.

“The weather team wants to stress that these temperatures and wind chills could be life threatening this week,” said Currently’s Chief Meteorologist Megan Montero. “Everyone is encouraged to stay indoors during this event and help others get to warm shelter, if they can.”

—Aarohi Sheth

What you can do, currently.