The polar vortex is a large region of low pressure and cold air that surrounds both of Earth’s poles. It is always present ...

Add Yahoo as a preferred source to see more of our stories on Google. Ohio and the Great Lakes are bracing for another cold shot later this month — down to single digits in places — as a polar vortex ...

Temperatures in October have been above average across central Virginia.But an unusually timed change in a large arctic weat ...

(CNN) — The calendar still says fall, but the atmosphere is skipping ahead to winter as a rush of Arctic air sends more than two dozen states into a brief deep freeze. It all starts this weekend in ...

While Florida will be spared the worst of the storm, cooler-than-normal temperatures are expected to last into early February. The extended cold is attributed to a negative phase of the Arctic ...

With summer heat continuing, many people are seeking ways to stay cool indoors. USA TODAY has rounded up some of the best deals on portable and personal air conditioners from Amazon. Discounted brands ...

Long-range model guidance shows signs of much lower temperatures entering the northern United States after the middle of January. Arctic air from Canada could begin to flow into the Midwest and Great ...

Farewell to the January thaw. A fierce Arctic blast of bitterly cold air is poised to overtake much of the central, eastern and southern U.S. over the next few days, dropping temperatures well below ...