Meteorologists warn extreme heat and sudden storms could force cancellations or alter plans for communities nationwide.

The first widespread, significant heat wave of the summer is underway, as a massive heat dome intensifies into the Fourth of ...

The nation's hottest official temperature climbed to 107 degrees, while the coldest reading fell to 19 degrees. Here's where ...

Half of all Americans are facing prolonged, dangerously heat as they head outdoors to celebrate the country’s 250th ...

The temperature reading in Central Park tied a record for July 2 set in 1966. Some 163 million people, from Missouri to Maine ...

Temperatures are skyrocketing for the third straight day across the Eastern US, but there’s at least three different ways to ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A powerful atmospheric pattern known as an “omega block” is currently ...

Add Yahoo as a preferred source to see more of our stories on Google. Photo by Max Omen on Unsplash In some cities, it is normal for the temperature to shift more than 30 degrees in a single day. In ...

A comprehensive new study extending the U.S. Historical Climatology Network (USHCN) record back to 1899 finds that both hot and cold temperature extremes across the contiguous United States have ...