East Idaho just lived through one of the most extraordinary heat events in the region's history — and it's not over yet.

Temperatures are being shattered by large margins over a vast area beyond California. "It's uncharted territory," said Baker Perry, Nevada's state climatologist.

WASHINGTON (AP) — Heat waves that lead to sudden and damaging drought are spreading across the globe at an accelerating rate, highlighting how climate change-fueled extremes can build dangerously off each other, a new study found. Researchers from South ...

The 2021 heat dome in the Pacific Northwest that overwhelmed emergency rooms and left hundreds dead. The 2022 heat wave in India that devastated the wheat harvest. The deadly heat waves in France in 2003, and China in 2013. A new study links these recent ...

A "heat dome," similar to a heat wave, is a high-pressure system trapping hot air and causing prolonged high temperatures. Heat domes differ from heat waves in their duration and the stagnant nature of the high-pressure system. Florida issues heat ...

It might feel unseasonably hot where you are right now. That's thanks in part to a heat wave in the Pacific Ocean.