Over the next 10 days, scientists say, changes in the stratosphere will upend weather patterns and set the stage for a cold, snowy December across parts of the Northern Hemisphere.

A blast of fall-like weather is coming for much of the United States, and unlike the last brief break from summer heat, this cooldown will have some staying power. It will feel more like late ...

Anyone who’s drinking hot pumpkin spice lattes in a chunky sweater may need to rein it in for a little while. The crisp weather many in the United States enjoyed over the last week or two was just a ...

As a taste of fall gives much of the United States a break from a hot, humid summer, some forecasters are already skipping ahead to winter, and a possible homecoming for an important atmospheric ...

Tropical Storm Gabrielle is struggling to organize after it formed Wednesday in the central Atlantic Ocean and put an end to an unusual nearly three-week stretch with no storms during the peak of ...