The National Weather Service predicts that more than 90 U.S. local temperature records will be tied or broken through Wednesday.

Most of America’s Lower 48 states are about to swelter under an unusually large, strong and long-lasting heat dome.

Most of America's Lower 48 states are about to swelter under an unusually large, strong and long-lasting heat dome that will spike temperatures in a way that the National Weather

Most of the U.S. is about to swelter under an unusually large, strong and long-lasting heat dome. The heat wave is set to start this weekend and last at least a week.

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LOS ANGELES, USA: A “widespread and significant” heat wave is predicted to bring oppressive temperatures to drought-hit western US states over the weekend, with all-time records…

A widespread and dangerous heat wave is building across the U.S., with triple-digit highs expected in the Southwest and Great Plains this weekend.

A heat wave is expected from the Intermountain West to the northern Plains. Another round of 90–100-degree heat is heading East.

The National Weather Service predicts that more than 90 U.S. local temperature records will be tied or broken through Wednesday.