New York is bracing for the coldest air of the winter this weekend, with snow. Learn how the polar vortex is involved.

This winter’s harsh run is intensifying, with some of the coldest air so far this season plunging into New Hampshire.

Windchill temperatures as low as minus 30 degrees are a risk to life, forecasters said.

Extreme cold warnings span several eastern states as of Friday, with meteorologists warning of frigid wind chills.

Several U.S. states will be able to view the Northern Lights tonight, including Alaska, New York and Montana.

The University of Alaska Fairbanks (UAF) says "highly active auroral displays" may be visible overhead on Thursday (Feb. 5) ...

From Hudson Bay to the Chukchi Sea, meet 19 polar bear groups and the people racing to protect them as ice disappears.

Grégory Bulté was snorkelling in the cold waters of Ontario's Opinicon Lake when he noticed the first dead turtle.

Will it snow in London? Map shows 600-mile band of wintry weather sweeping UK as temperatures drop - GPS maps point to snow ...

Brianna Hollis reports on the United States Women securing a key win over Canada, their closest rivals for gold.

The mid-winter report card for Canada is in. See how your province or territory scored. Who is passing? Who needs to catch up ...

A weather warning for up to -35 C wind chills is in effect for southern Ontario on Monday. The warning covers all of southern Ontario with wind chills of 30 C to 35 C this morning in the Greater ...