Extreme humidity and triple-digit temperatures are affecting around 250 million people across the United States. Here's the science behind the heat dome that’s stifling the nation. A sunbather rests ...

An ongoing heat wave has knocked out power to thousands of Con Edison customers in the five boroughs over the past two days. As of 6:30 p.m. Tuesday, 3,521 customers in the city were without power, ...

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To compare heat wave trends, spatial patterns, and underlying drivers between lakes and the overlying atmosphere, the researchers analyzed daily surface-water and near-surface air temperatures from ...

Temperatures will surge near 100 degrees Fahrenheit across parts of the Mississippi Valley and Plains this weekend. Some areas could even see 86-year temperature records broken, according to a report ...

It is well known that heat causes exhaustion in the body due to dehydration. But aging? A recent study concluded that extreme heat accelerates the aging of the human body, a worrying fact given the ...

An extreme heat warning across Western Washington is in effect through 5 a.m. Wednesday, according to an advisory from the Seattle branch of the National Weather Service. Temperatures at ...

PORTLAND, Ore. (KATU) — Day two of the heat wave has arrived and could be even hotter than yesterday. High clouds have moved in from the south, but they will clearing out as the day progresses.

BEYOND OUR FORECAST AROUND HERE, IT’S THE HEAT ANOTHER DAY THAT WE’RE GETTING INTO SOME HOT TEMPERATURES, INCLUDING MOST OF YOU AT OR ABOVE 100 DEGREES. WE KICKED OFF THE HEAT WAVE OFFICIALLY. IT’S A ...

Parts of the Bay Area were baking under triple-digit heat on Thursday, with at least seven cities notching new daily records, the National Weather Service said. Santa Rosa and San Rafael both hit 100 ...

The intense late-summer heat wave was expected to hit its peak highs Thursday and Friday across most of inland San Diego County, generating dangerous temperatures in some locations that are expected ...

The season’s most dangerous heat wave has arrived in Southern California, and yet many workplaces are not prepared. So says a new report by job safety advocacy nonprofit Worksafe that surveyed about ...