The polar vortex is forecast to weaken unusually early, and that could lead to more persistent cold weather in at least parts of the U.S. in December. Last week, almost 100 daily record lows were tied ...

With less than a week to go before the end of daylight saving time, some places in the United States are already feeling the effects of the time change with earlier and earlier sunsets. Despite calls ...

Add Yahoo as a preferred source to see more of our stories on Google. While politicians, including President Donald Trump, have gloated the idea of ending daylight savings time for years, for this ...

We sprang forward — now, it's time to fall back again. Daylight saving time will officially end in North America on Sunday Nov. 2, 2025, when clocks move back by an hour. In most of Europe, meanwhile, ...

A blast of cold air is expected to bring below-normal temperatures to Tennessee around Thanksgiving. The cold air is a result of the polar vortex expanding and pushing arctic air southward. Travelers ...

A major winter storm is impacting much of the nation east of the Rocky Mountains. The storm's intensity is caused by a combination of a stretched polar vortex, a wavy jet stream, and moisture from the ...