The National Weather Service issued an extreme heat warning for a second day as the heat index surpasses 100. See how hot it will get in Delaware.

Extreme Heat Warning issued by NWS for the Baltimore/Washington DC area with heat index values up to 111 degrees.

In major cities such as Washington, D.C., Baltimore, Philadelphia and New York, the temperature was forecast to approach 100 ...

While the rest of this week will feel stiflingly hot, temperatures are not expected to reach the highs required for an excessive heat warning.

With the heat becoming increasingly difficult to manage this summer, we take a look at what you can expect when you're ...

Some hot days feel even worse thanks to high humidity, trapped heat and dew points. Cities are especially vulnerable.

Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

Summer is a time to relax and unwind in the sun, but many activities come with an element of potential danger.

An excessive heat warning has been issued for the Hudson Valley through Tuesday at 8 p.m., according to the National Weather Service. The combination of temperatures in the 90s and dew points in the ...

Con Edison is distributing dry ice to residents in eastern Queens impacted by power outages due to the soaring temperatures ...

The Washington Monument is closed on Monday after an excessive heat warning was issued for the Washington D.C. area.

Due to projected excessive heat warnings this week, the downtown Fredericksburg churches that form Micah Ministries are ...