A heat wave hit much of the central U.S. over the weekend, while snow and cool temperatures arrived in the Northwest.

Nearly 160 million people are under heat alerts from eastern Texas to Maine, as temperatures are forecasted to be as much as ...

The temperature was forecast to reach 99 degrees or higher on Tuesday, which could cause some voters, especially older ones, ...

Sometimes the temperature outside feels warmer than it is, and there's a reason. Here's a breakdown of the heat index.

Duke Energy provided the following tips on how customers can help protect the power grid: Set your thermostat to the highest ...

Heat exhaustion and heatstroke can be brought on by extremely high temperatures. How to keep others and yourself safe.

Honolulu forecast: brisk trade winds and intermittent rain to persist, with a gradual drying trend and moderate winds later.

Collegeville in Jasper County has the dubious honor of recording the hottest daily temperature ever in Indiana. Here's when it happened.

Electricity costs in the United States are surging as demand hits record highs from data centers, artificial intelligence ...

Retired federal scientists warn Trump administration's proposed NOAA budget cuts could be costly and harm forecast accuracy.

June snowfall does happen sometimes, though it typically only happens every "five to 10 years," according to the National ...

Sacramento forecasts clear skies with rising temperatures, reaching highs near 88-98 degrees throughout the week.