Editor’s note (3/21/26): Four stations (two in Arizona and two in California) recorded temperatures of 112 degrees Fahrenheit (44.4 degrees Celsius) on Friday, March 20, besting the all-time U.S.

A small Arizona community broke the record for highest temperature ever recorded in March in the United States, reaching a scorching 110 degrees March 19 amid an early heat wave in the Southwest. The ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. An unusually intense and early season heat wave has shattered March temperature records across much of the U.S. Southwest ...

Several of the Earth’s systems are changing faster than predicted as global temperatures rise, scientists say. By David Gelles Scientists who study global warming are currently wrestling with a ...

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Our heat wave is surging over the Rocky Mountains, and Denver has just reached two remarkable weather marks: - Denver smashed the all-time record high for the month of March, which was 84 degrees. The ...

Martinez Lake, about 145 miles west of Phoenix, reached 110F (43.3C) on Thursday amid scorching south-west heat Sign up for the Breaking News US email to get newsletter alerts in your inbox A small ...

A desert community in Arizona has broken the record for the highest temperature ever recorded in March in the US. Temperatures reached 43C (110F) in the area, located just outside Martinez Lake in the ...

Some highs in California, Nevada and Arizona recorded at 25-35F above normal, with widespread alerts and closures States across the US south-west recorded blistering temperatures at the tail end of ...

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Temperatures reached record highs in multiple states on Wednesday, as a heat wave that has been scorching the West since last week expanded into the middle of the country. The unusually warm weather ...

An unprecedented heat wave in the West broke the record for the hottest March temperature anywhere in the United States: 108 degrees. It’s an alarming signal of how hot the planet is getting and how ...