A heat dome​ is trapping over 90 million Americans in extreme temperatures this week with the National Weather Service​ issuing heat alerts from Nebraska to Florida.

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

Smoke from hundreds of wildfires in Canada has choked the skies over dozens of northern U.S. states in the Great Lakes and ...

A cold front is bringing storms and lower temperatures to parts of the country, while the Midwest sees poor air quality from ...

A winter storm dumped snow and ice on a portion of the Midwest while bringing strong winds and severe cold to millions of Americans in a region bracing for winter weather this week. While much of the ...

It’s the hottest time of the year in the United States and another heat dome is about to make millions of people feel every bit of it.

The Midwest saw some of the worst air quality conditions in the world Thursday, and similar conditions are expected to ...

The National Weather Service has sent out millions of extreme heat warnings, heat watches and heat advisory alerts this week, and expects the alerts to be in effect through the rest of the weekend.

The process is officially known as evapotranspiration, which is how plants, including corn, release water vapor into the ...