Millions of Americans are under weather advisories this week. See which major cities have heat, flood or storm advisories.

A heat dome​ is trapping over 90 million Americans in extreme temperatures this week with the National Weather Service​ issuing heat alerts from Nebraska to Florida.

A “heat dome” is expected to increase temperatures and humidity levels throughout the South and parts of the Midwest this ...

How low should you set your thermostat for as record-breaking heat sweeps over the country? Here's what experts and other ...

A heat advisory for Florida's Treasure Coast is in effect from noon through 6 p.m., with heat index values from 109 to 112 possible.

The National Weather Service has issued heat advisories across Southeast Georgia, as well as Northeast and Central Florida.

Millions across the Midwest, South, and Northeast prepare for potential record-breaking temperatures this week as heat alerts are issued nationwide.

The National Weather Service has warned of "searing heat and oppressive humidity that occurs during the 'dog days of summer'." ...

At least 135 people, including 37 children, died in the torrential downpour over the July 4 holiday weekend. The number of missing people dropped sharply on Saturday.

While the National Hurricane Center's map is lit up with a tropical disturbance, Saturday's forecast is much more about the ...

CNN is tracking extreme heat conditions for Americans each day. See where the risks are greatest — and where high temperature records might be broken.