An early season heat wave will roast states in the Northwestern U.S. beginning this weekend and lasting until next week.

Sea temperatures in the Everglades reached 98 degrees as marine heat waves stretch across hundreds of miles, fueling humidity ...

The first wave of the season will arrive this weekend. High temperatures will top out in the lower to mid-90s.

Tens of millions of Americans across the south and central U.S. – many of them in Texas – have endured a brutal heat wave over the past couple of weeks as temperatures soared to record levels ...

By Katherine Hafner/WHRO The temperature of water in the Chesapeake Bay naturally fluctuates each year, tied to weather ...

At least 748 heat-related deaths have been reported in the heat wave in Spain and neighboring Portugal, where temperatures reached 117 degrees this month. The Met Office issued the U.K.'s first ...

Here are three graphs that show the effects of this heat wave — and global warming — on Massachusetts. Amid sweltering heat, residents tend to use more electricity to power their air conditioning.

Millions of people in the UK escaped to parks to cool down during this summer’s heat wave, which was more intense and widespread than past extreme events, with 40°C temperatures in the country ...

National Oceanic and Atmospheric Administration data shows 2025 already has a 39% chance of being the second-warmest year on ...

A heat wave was expected to bring record-high temperatures to the midwestern United States this week before spreading to the East Coast, forecasters said. At the same time, a bout of severe ...

Her work has also looked at the impact of urbanicity and socioeconomic status on heat-wave related mortality in Memphis. She said rural towns often lack the resources to help residents prepare for ...

Heat alerts are in effect for 16 states from Maine to Kentucky as the dangerous heat wave continues. Boston and Manchester, New Hampshire, both reached a record high of 98 degrees on Wednesday.